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Hirose DF14 Connector Complete Guide: Specs, Offset vs On-Board Mounting & the KONNRA KR1255 Equivalent

Quick answer: The Hirose DF14 is a 1.25mm pitch, single-row, low-profile crimp wire-to-board connector, part of Hirose’s SignalBee™ signal-cable brand. It is catalogued in 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25 and 30 contacts, rated 1A per pin at 150V AC/DC, in a −35°C to +85°C operating range. It comes in two board-mounting architectures: the on-board type undefined / undefined at a 2.5mm board-mounted height, and the offset type undefined at an even lower 1.6mm — but the offset header is catalogued in 20 and 30 positions only. Termination is crimping of discrete wire (UL1571, 26 to 32 AWG). The KONNRA KR1255 series is documented as its cross-reference equivalent: 1.25mm pitch, 2 to 30 circuits, 1A, 150V, supplied as a right-angle SMT wafer, a housing and a crimp terminal, with a documented operating range of −40°C to +105°C and tin-over-nickel plating. This guide sets the two documents side by side and flags the eight places where they disagree instead of averaging them.

At a glance


Manufacturer of the original	Hirose Electric Co., Ltd. — not JST
Series	DF14 (Hirose brand line: SignalBee™)
Pitch	1.25mm
Configuration	Single row, wire-to-board (crimp socket to right-angle pin header)
Positions	2 to 10, 15, 20, 25, 30 — thirteen catalogued counts
Board-mounted height	2.5mm (on-board type) · 1.6mm (offset type `DF14H`)
Rated current	1A / pin
Rated voltage	150V AC / DC
Operating temperature	−35°C to +85°C (Hirose note: includes temperature rise caused by current flow)
Withstanding voltage	500V AC per minute, no flashover or insulation breakdown
Insulation resistance	500MΩ min. at 100V DC
Contact resistance	30mΩ max.
Mating durability	30 cycles (tin plating) · 50 cycles (gold plating)
Plating options	Tin or gold
Termination	Crimping — discrete wire only
Typical use	LCD panels, note PCs, PDAs, small office equipment, video devices
KONNRA equivalent	KR1255 (2–30 circuits, 1.25mm pitch, right-angle SMT wafer + housing + terminal)

Because the DF14 sits between a board and a cable at 1.25mm pitch, the questions engineers and buyers actually ask about it are narrow and practical: how many positions, which of the two mounting heights, which wire, whether gold or tin, and whether a second source exists. This guide answers those with every figure traced to Hirose’s or KONNRA’s own documentation — and it flags the disagreements rather than splitting the difference.

What this guide covers:

Is the DF14 a JST or a Hirose connector? (It is Hirose — and it is not the DF13, which is the other Hirose 1.25mm family)
Hirose DF14 and KONNRA KR1255 specifications, side by side
Complete part number cross-reference — crimp sockets, pin headers, offset headers, crimp contacts
How the DF14’s two board heights are achieved, and what the 1.6mm offset type costs you
Why the DF14 terminates by crimping only, and where the “DF14 with FPC” story comes from
Position counts, contact-field arithmetic, and how to check a footprint without a drawing
DF14 vs DF13 vs DF19 and the rest of the 1.25mm class
Sourcing questions procurement teams ask
A cross-reference checklist for your specific part number

Is the DF14 a Hirose or a JST connector?

The DF14 is a Hirose Electric series. There is no JST series designated DF14.

The mix-up is common, and there are two reasons for it. First, both brands’ small wire-to-board connectors sit side by side on the same boards and both get called “JST connectors” in conversation — JST stands for Japan Solderless Terminal, and the name has become a generic label for any small crimp-style wire-to-board connector. Second, the two families share a pitch class: Hirose’s 1.25mm DF14 and JST’s 1.25mm GH are both 1.25mm, and they look similar in a photograph.

The DF14 and the DF13 are both Hirose, both 1.25mm, and still not the same connector. The DF13 is Hirose’s miniature crimping connector line, catalogued in 2 to 15, 20, 30 and 40 positions, in one or two rows, with rated currents of 1.0A and 2.5A, connector heights from 3.4mm to 5.4mm, and both SMT and THT mounting. The DF14 is a single-row, low-profile series at 2.5mm / 1.6mm board height with a 1A rating. They are different product families with different footprints, different heights and different mating geometry. Writing “DF14/DF13” as if the two were interchangeable is the second most common error on this series, after “JST DF14”.

Rule of thumb: at 1.25mm pitch, always cross-reference on the part number, never on the pitch or the appearance. DF13, DF14, DF19 and DF20 all live within a fraction of a millimetre of each other, and none of them mate with any other. KONNRA’s published cross-reference range reflects the split — KR1255 for the Hirose DF14, KR1256 for the Hirose DF13, KR1259 for JST GH.

What Is the Hirose DF14 Connector?

The DF14 is a 1.25mm pitch, single-row, low-profile crimp connector for wire-to-board signal runs, marketed by Hirose under the SignalBee™ brand for signal cable connectors. Hirose’s own summary of the series is three features long, and each one is a design decision you inherit when you select it.

1. Low profile. Hirose states that the DF14 is a right-angle connector designed to enable a low profile on the board, so signals can be routed in places where there is no space between boards. The on-board type, undefined / undefined, has a board-mounted height of 2.5mm. The offset type, undefined, is lower still, at 1.6mm — achieved by moving the header to the board edge rather than standing it on the board surface.

2. Pick & place mounting. The header carries a vacuum suction surface and is supplied in embossed tape packaging for automated pick-and-place. The on-board type is also available in tube packaging where you are not running tape.

3. Four-wall design. The header is box-shaped, and Hirose’s stated purpose for the walls is specific: they prevent prying and mis-insertion, and they prevent the socket from rubbing against the board. Hirose also adds retention tabs to the header to prevent solder peeling.

Key characteristics:

1.25mm pitch, single row — up to 30 contacts
Right-angle SMT mounting, in on-board and offset versions
Two board-mounted heights — 2.5mm on-board, 1.6mm offset
Box-shaped (four-wall) header with retention tabs
Pick & place compatible — vacuum suction surface, embossed tape
Crimped discrete-wire termination — UL1571, 26 to 32 AWG
Tin or gold plating on contacts
Beige polyamide insulators, UL94V-0, RoHS2 compliant
30-cycle durability with tin plating, 50 cycles with gold
Rated 1A per pin at 150V AC/DC, −35°C to +85°C

Figure 1 — KONNRA KR1255 series: the 1.25mm pitch connector for the Hirose DF14 interface

Figure 1 — KONNRA KR1255 series: the 1.25mm pitch connector for the Hirose DF14 interface

➡️ View the KONNRA KR1255 Hirose DF14 Equivalent

A short glossary, because this series uses three terms that are easy to swap

Pin header — the board-mounted half, soldered to the PCB. In the DF14 numbering this is the part with a P in it (DF14-20P-1.25H). Hirose also calls it the “header” or “box-shaped header”.
Crimp socket — the cable-side half, moulded housing plus crimped contacts. In the numbering this is the part with an S (DF14-20S-1.25C). Hirose calls it the “crimp socket”; KONNRA calls the same part a “housing” plus a “terminal”.
Contact — the crimped metal piece that goes into the socket. Ordered separately, on reels, by wire gauge (DF14-2628SCF for 26–28 AWG, DF14-3032SCF for 30–32 AWG).
On-board — the header stands on top of the board. This is the standard DF14, at a 2.5mm board-mounted height.
Offset — the header body is positioned at the board edge rather than on top of it, so the mated height above the board drops to 1.6mm. This is the DF14H variant, and it is a separate part number with its own PCB mounting pattern.
Four-wall design — a box header with walls on all four sides of the contact field. The socket is guided by the walls, so it cannot be inserted at an angle that rubs the board.
Embossed tape — carrier tape for pick-and-place feeders, as opposed to tube packaging for hand loading.

Hirose DF14 and KONNRA KR1255 Specifications

Parameter	Hirose DF14 (Hirose documentation)	KONNRA KR1255 (KONNRA documentation)
Pitch	1.25mm	1.25mm
Row configuration	Single row	Single row
Connection type	Wire-to-Board (crimp socket to right-angle pin header)	Wire to Board
Positions	2–10, 15, 20, 25, 30 (thirteen counts)	2–30 pin (drawing covers 2–15, 20, 25, 30)
Rated current	1A / pin	1A (KONNRA spec states 1A at 26 AWG)
Rated voltage	150V AC / DC	150V AC / DC
Operating temperature	−35°C to +85°C (includes temperature rise from current flow)	−40°C to +105°C
Operating humidity	40% to 80%	Not documented
Storage temperature	−10°C to +60°C (unused, packaged)	Not documented
Storage humidity	40% to 70% (unused, packaged)	Not documented
Insulation resistance	500MΩ min. at 100V DC	500MΩ min.
Withstanding voltage	500V AC per minute, no flashover or insulation breakdown	500V AC / minute, no breakdown and flashover
Contact resistance	30mΩ max., measured at 20mV or less, 1mA	30mΩ max., measured at 20mV max, 100mA max (EIA-364-23C)
Temperature rise	Not documented in the catalog table	30°C max. at rated current (EIA-364-70B)
Insertion / extraction force	0.15N min. (15gf) to 3N max. (300gf) per contact, measured with a 0.3mm square pin	Per connector, by position count — 2 pos: 1.60kgf max insertion / 0.10kgf min withdrawal; 30 pos: 10.00kgf / 1.50kgf
Mating durability	Tin: 30 cycles · Gold: 50 cycles, contact resistance held to 30mΩ max	30 cycles, contact resistance 60mΩ max after cycling (EIA-364-09C)
Vibration	No electrical discontinuity of 1μs or more — 10 to 55Hz, 0.75mm single amplitude, 2 hours in each of 3 directions	1.5mm P-P, 10~55~10Hz in 1 minute, 2 hours in each of X, Y, Z; contact resistance 60mΩ max; discontinuity 1μs max
Humidity (steady state)	96 hours at 40±2°C, 90–95% RH; contact resistance 30mΩ max, insulation resistance 500MΩ min	96 hours at 40±2°C, 90–95% RH; contact resistance 60mΩ max, insulation resistance 100MΩ min
Temperature cycle	−55°C → +5 to +35°C → +85°C → +5 to +35°C, 5 cycles; contact resistance 30mΩ max	−40°C → room temp. → +105°C → room temp., 5 cycles; contact resistance 60mΩ max
Shock	Not documented in the catalog table	490m/s² (50g), 3 strokes in each of 6 directions; contact resistance 60mΩ max (EIA-364-27B)
Salt spray	Not documented	24 hours, 35±2°C, 5±1% solution; contact resistance 60mΩ max
Solderability	Not documented	245±5°C for 3±0.5 seconds; 95% of immersed area must show no voids or pin holes
Solder heat resistance	Reflow at the recommended profile; manual soldering 350°C for 3 seconds in the catalog (the DF14 guideline PDF states 290°C for 2 seconds — see the differences section)	SMT type withstands the profile in section 9.0 — peak 255±5°C for 5–10 seconds, reflow minimum 230°C for 20–40 seconds, pre-heat 150–200°C for 90–120 seconds
Crimp socket insulator	Polyamide, beige, UL94V-0	PA66, UL94 V-0 (housing)
Header insulator	Polyamide, beige, UL94V-0	PA6T, UL94 V-0 (right-angle SMT wafer)
Socket crimp contact	Phosphor copper, tin or gold plated	Phosphor bronze, tin plated over nickel
Header contact	Brass, tin or gold plated	Brass, tin plated over nickel
Retention tab / solder tab	Phosphor copper, tin plated	Brass, tin plated over nickel (solder tab)
Plating	Tin or gold; the DF14 series data lists plating thickness values of 0.1μm and 0.76μm	Tin over nickel, thickness not documented
Applicable discrete wire	UL1571, 26 AWG (7/0.16mm), 28 AWG (7/0.127mm), 30 AWG (7/0.1mm), 32 AWG (7/0.08mm); jacket 0.54 to 1mm	AWG 26# to 32#, insulation O.D. 1.00mm max
Wire exclusions	Crimping solid wire, wire with polyester threads and tin-coated wire is to be avoided	Not documented
Strip length	1.2mm to 1.9mm	1.3mm to 1.8mm
Mounting styles	On-board (2.5mm high, with boss `DF14` or without boss `DF14A`) and offset (1.6mm high, `DF14H`, 20 and 30 positions only)	Right angle SMT wafer
Industry / safety standard	DF14 series page lists no industry or safety standard (the DF13 page is explicitly labelled “UL Certified”)	UL, file E482542
Approvals	RoHS2 compliant	RoHS compliant; UL94 V-0 materials
Tooling	Applicator `AP105-DF14-2628S` and `AP105-DF14-3032S`, press unit `CM-105C`, manual crimp tools `DF14-2628/CR-HT` and `DF14-3032/CR-HT`, extraction tool `DF-C-PO(B)`; Hirose states the warranty does not cover problems caused by tools other than those it specifies	Crimp dimensions, crimp strength and reel packaging are specified; crimp tooling is not documented

“—” and “Not documented” mean the parameter is not stated in the manufacturer documentation reviewed for this guide. Confirm any blank against the current Hirose DF14 catalog and the KR1255 product specification before releasing a drawing.

The 1.6mm Offset Type: How the DF14 Gets Below Its Own 2.5mm Height

Most 1.25mm wire-to-board connectors are described by one board height. The DF14 has two, and the difference between them is the single most useful thing to understand before you specify one.

Mounting style	Part prefix	Board-mounted height	Positions catalogued	What it is
On-board, with boss	`DF14-…-1.25H`	2.5mm	2 to 10, 15, 20, 25, 30	Standard right-angle header standing on the board surface, located by a boss
On-board, without boss	`DF14A-…-1.25H`	2.5mm	2 to 10, 15, 20, 25, 30	Same header footprint, no locating boss, so no boss hole is needed
Offset	`DF14H-…-1.25H`	1.6mm	20 and 30 only	Header set at the board edge so the mated assembly sits lower

How the 1.6mm figure is produced. Hirose’s catalog explains the mechanism rather than just quoting the number: the on-board type is the version that stands on the board, and the offset type “has an even lower profile” because the header is not mounted on the board surface but offset to the edge. The catalog’s own board-mounted diagrams show the on-board type at 2.5mm and the offset type at 1.6mm. The offset header therefore trades board area for height: instead of occupying board surface, part of the assembly sits proud of the board outline.

Three practical consequences of choosing the offset type.

It is a different PCB pattern, not a different height of the same pattern. Hirose publishes the offset mounting pattern separately from the on-board pattern, with its own dimensions (including a 0.5mm reference dimension, a 0.3mm reference dimension, a 1.3 +0.2/0 slot, a 6.7±0.1 and a 3.6±0.1 datum). You cannot lay out an on-board footprint and expect a DF14H to land on it.
It is a 20- and 30-position part. The offset header is catalogued in those two counts only. If your design needs 8 or 15 positions at 1.6mm, the offset type is not available and the answer is a packaging change rather than a part-number change.
It is supplied on tape only. The offset headers are catalogued in 1,000-piece reels with a gold-plated embossed-tape specification, whereas the on-board header is available in both tape and tube. If your line hand-loads tube parts, the offset type removes that option.

On the board cut-out question. Hirose’s catalog shows the offset type with its own mounting pattern and a board-mounted height of 1.6mm, and the header body sits at the board edge rather than entirely on the board surface. The catalog does not use the word “notch”. Whether your particular board outline needs a cut-out for a DF14H is a mechanical question to settle against the DF14H drawing and the enclosure, not something to infer from the height figure — send us the header part number and the board edge detail and we will confirm the clearance envelope we can supply against.

What KONNRA documents. A right-angle SMT wafer at a 2.5mm on-board height — the on-board architecture. KONNRA’s product page describes the series as having a “low height (only 2.5mm on board)”. No offset (1.6mm) wafer is documented on the KR1255 side. If your design depends on the 1.6mm offset height, that is the first thing to raise with us, because it is the difference between a drop-in second source and a board respin.

Hirose DF14 Part Number Cross-Reference

Hirose DF14 component	Hirose part numbers	KONNRA equivalent
Crimp socket (cable side)	`DF14-2S-1.25C(10)` through `DF14-10S-1.25C(10)`, `DF14-15S-1.25C(10)`, `DF14-20S-1.25C(10)`, `DF14-25S-1.25C(10)`, `DF14-30S-1.25C(10)`	KR1255 housing
Right-angle pin header, on-board, with boss	`DF14-2P-1.25H(##)` through `DF14-30P-1.25H(##)`	KR1255 right-angle SMT wafer
Right-angle pin header, on-board, without boss	`DF14A-2P-1.25H(##)` through `DF14A-30P-1.25H(##)`	KR1255 right-angle SMT wafer
Right-angle pin header, offset (1.6mm)	`DF14H-20P-1.25H(##)`, `DF14H-30P-1.25H(##)`	Not documented
Crimp contact, 26–28 AWG, tin plated	`DF14-2628SCF`	KR1255 terminal
Crimp contact, 26–28 AWG, gold plated	`DF14-2628SCFA`	Not documented (KR1255 plating is tin over nickel)
Crimp contact, 30–32 AWG, tin plated	`DF14-3032SCF`	KR1255 terminal
Crimp contact, 30–32 AWG, gold plated	`DF14-3032SCFA`	Not documented (KR1255 plating is tin over nickel)
Applicator	`AP105-DF14-2628S`, `AP105-DF14-3032S`	Not documented
Manual crimp tool	`DF14-2628/CR-HT`, `DF14-3032/CR-HT`	Not documented
Press unit	`CM-105C`	Not documented
Extraction tool	`DF-C-PO(B)`	Not documented

How to read a DF14 part number

Every DF14 part number encodes the same six fields. Reading them is what lets you confirm a cross-reference instead of guessing at it.

DF14 A - 20 P - 1.25 H (##)

Field	Meaning
`DF14`	Series name
Configuration	Blank = standard on-board with boss; `undefined` = on-board without boss; `undefined` = offset (1.6mm)
Number of contacts	2 to 10, 15, 20, 25 or 30
Connector type	`undefined` = single-row socket (crimp socket, cable side) · `undefined` = single-row pin header (board side)
`1.25`	Contact pitch, 1.25mm
Contact type	`undefined` = crimping socket · `undefined` = right-angle SMT
Packaging	On the header: `undefined` tin plated embossed tape · `undefined` tin plated tube · `undefined` gold plated embossed tape · `undefined` gold plated tube. On the crimp socket: `undefined` bag, 100 pieces per bag

The crimp contacts use their own numbering: DF14 - 2628 SCF A

Field	Meaning
`DF14`	Contact series
`2628` / `3032`	Applicable conductor size — 26 to 28 AWG, and 30 to 32 AWG respectively
`SCF`	Socket contact, supplied on reel
`A`	Gold plating; blank means tin plating
Packaging	10,000 pieces per reel

One trap in this numbering. The character in the second field is doing two different jobs depending on the connector type. On a header, a leading A means “on-board, without boss” and an H means “offset”. On a contact, a trailing A means “gold plated”. Reading a trailing A as a configuration code, or a leading A as a plating code, is the most common part-number error on this series.

Pin counts and the dimension arithmetic

Hirose catalogues the DF14 in thirteen counts: 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25 and 30. The contact field scales at exactly 1.25mm per position from a fixed base, and the two halves of the connector are measured from different reference points.

Contacts	Crimp socket `A` (Hirose)	Crimp socket `B` (Hirose)	Header `A` (on-board, `DF14` / `DF14A`)	Header `B`
2	4.45mm	1.25mm	7.45mm	1.25mm
3	5.70mm	2.50mm	8.70mm	2.50mm
4	6.95mm	3.75mm	9.95mm	3.75mm
5	8.20mm	5.00mm	11.20mm	5.00mm
6	9.45mm	6.25mm	12.45mm	6.25mm
7	10.70mm	7.50mm	13.70mm	7.50mm
8	11.95mm	8.75mm	14.95mm	8.75mm
9	13.20mm	10.00mm	16.20mm	10.00mm
10	14.45mm	11.25mm	17.45mm	11.25mm
15	20.70mm	17.50mm	23.70mm	17.50mm
20	26.95mm	23.75mm	29.95mm	23.75mm
25	33.20mm	30.00mm	36.20mm	30.00mm
30	39.45mm	36.25mm	42.45mm	36.25mm

The arithmetic is a useful cross-check. For the crimp socket, the B dimension is 1.25mm × (positions − 1); for the 10-position part that is 11.25mm, and Hirose’s table reproduces it exactly at 2 through 30 positions. The socket’s overall A dimension runs 3.20mm above undefined (4.45 − 1.25 at 2 positions; 39.45 − 36.25 at 30 positions). The on-board header’s overall A dimension runs 6.20mm above its undefined (7.45 − 1.25 = 6.20; 42.45 − 36.25 = 6.20). If a quotation or a drawing quotes a different overall dimension for a given position count, one of the two numbers is wrong.

Note on KONNRA’s range. KONNRA markets the KR1255 as 2–30 pin, and the KONNRA series drawing tabulates dimensions for 2 to 15, 20, 25 and 30, plus 11, 12, 13 and 14 — counts that Hirose’s catalog does not list. If your build calls for an intermediate count, that is a case where KONNRA’s tooling may be broader than the original catalog, but it is also a case where the two documents stop being comparable. Confirm availability in writing rather than assuming a continuous range.

The KONNRA wafer matches the Hirose on-board header footprint. KONNRA’s wafer drawing lists its header B dimensions as 7.45, 8.70, 9.95, 11.20, 12.45, 13.70, 14.95, 16.20, 17.45, (18.70, 19.95, 21.20, 22.45 for 11–14 positions), 23.70, 29.95, 36.20 and 42.45mm for 2 to 30 positions — the same numbers as Hirose’s on-board header A column, at every catalogued count. The contact-field dimensions match too (1.25mm to 36.25mm). That is the strongest single piece of evidence that the KR1255 right-angle wafer is dimensioned to the DF14 on-board footprint, and it is the first thing to verify against your own library footprint.

Figure 2 — KR1255 1.25mm pitch SMT right-angle wafer: the board-mounted half of the DF14 interface

Figure 2 — KR1255 1.25mm pitch SMT right-angle wafer: the board-mounted half of the DF14 interface

➡️ KR1255 Right Angle Wafer

The boss, and why it changes the PCB pattern but not the footprint

Hirose’s on-board header is offered in two versions that share the same A, B, C and D envelope:

Position	`DF14` (with boss) `A` / `B` / `C` / `D`	`DF14A` (without boss) `A` / `B` / `C` / `D`
2	7.45 / 1.25 / 6.45 / 8.05mm	7.45 / 1.25 / 6.45 / 8.05mm
10	17.45 / 11.25 / 16.45 / 18.05mm	17.45 / 11.25 / 16.45 / 18.05mm
20	29.95 / 23.75 / 28.95 / 30.55mm	29.95 / 23.75 / 28.95 / 30.55mm
30	42.45 / 36.25 / 41.45 / 43.05mm	42.45 / 36.25 / 41.45 / 43.05mm

The difference is the mounting pattern: the with-boss version needs a φ1.1 +0.1mm boss hole, and Hirose’s pattern note states that on the “without boss” style no hole is needed. Whether your board has that hole is therefore not a footprint change, it is a decision about whether the connector is located by the boss or by the solder pads alone. The KONNRA wafer drawing carries a two-value option field on this point (“01: have columns / 02: no column” in the drawing text, where the columns are the locating features); confirm with us which option your part number calls for rather than assuming the default.

The crimp contacts, by wire gauge

Contact	Wire gauge	Plating	Packaging
`DF14-2628SCF`	26 to 28 AWG	Tin	10,000 pcs / reel
`DF14-2628SCFA`	26 to 28 AWG	Gold	10,000 pcs / reel
`DF14-3032SCF`	30 to 32 AWG	Tin	10,000 pcs / reel
`DF14-3032SCFA`	30 to 32 AWG	Gold	10,000 pcs / reel

Hirose’s applicable-cable table is narrow and specific. Every entry is UL1571 construction with a tin-plated annealed copper conductor:

Wire size	Conductor construction	Sectional area	Jacket diameter
26 AWG	7/0.16mm	0.141mm²	0.54 to 1mm (0.98mm with a manual crimp tool)
28 AWG	7/0.127mm	0.089mm²	0.54 to 1mm (0.88mm with a manual crimp tool)
30 AWG	7/0.1mm	0.055mm²	0.54 to 1mm (0.7mm with a manual crimp tool)
32 AWG	7/0.08mm	0.035mm²	0.54 to 1mm (0.54mm with a manual crimp tool)

Hirose’s crimping precautions add three exclusions: do not crimp solid wire, do not crimp wire with polyester threads, do not crimp tin-coated wire, and do not crimp two cables together. The strip length is 1.2mm to 1.9mm, quoted as a reference value to be adjusted so the crimp meets the standard.

KONNRA’s equivalent window is AWG 26# to 32# with an insulation O.D. of 1.00mm maximum, and a strip length of 1.3mm to 1.8mm. The KR1255 drawing also specifies crimp height and crimp strength per gauge rather than leaving them to the applicator: crimp height 0.68–0.60mm at 26 AWG, 0.55–0.63mm at 28 AWG, 0.48–0.58mm at 30 AWG and 0.43–0.53mm at 32 AWG, with minimum crimp strength of 2.27kgf, 1.36kgf, 0.9kgf and 0.7kgf respectively.

DF14 vs the Other 1.25mm Series

“1.25mm pitch” does not identify a connector. Hirose alone sells the DF13 and the DF14 at this pitch and they are not intermateable; JST sells the GH; and KONNRA supplies eight different 1.25mm families. The table below uses each manufacturer’s own published series data.

Series	Pitch	Positions available	Wire range	Rated current	Rated voltage	Rows	KONNRA equivalent
Hirose DF14	1.25mm	2–10, 15, 20, 25, 30	26–32 AWG	1A / pin	150V AC/DC	1	KR1255 — and KR1258 for the locking version
Hirose DF13	1.25mm	2–15, 20, 30, 40	26–32 AWG	1.0A and 2.5A	150V AC/DC	1 and 2	KR1256
Hirose DF19	1.0mm	8, 14, 20, 30	28–36 AWG, FPC, micro-coax	0.3A to 1A by termination	100V AC	1	KR1002
JST GH	1.25mm	2–16	—	1A	50V	1	KR1259
Molex PicoBlade (wire-to-board)	1.25mm	2–16	—	1A	125V	1	KR1250
Molex PicoBlade (wire-to-wire)	1.25mm	2–16	—	1A	125V	1	KR1251
Molex PanelMate	1.25mm	2–30	—	1A	125V	1	KR1253

What this table shows.

The DF14 and DF13 are the two Hirose members of the 1.25mm class, and they are different connectors. The DF13 is a two-row-capable miniature crimping line with a 2.5A option and connector heights from 3.4mm to 5.4mm; the DF14 is a single-row low-profile line with 2.5mm and 1.6mm board heights and a 1A rating. If you are holding a 1.25mm Hirose crimp connector, measure the board height first: 2.5mm or 1.6mm points at DF14, and 3.4mm or more points at DF13.
The DF19 is a 1.0mm series and is a different problem entirely. It is built for LVDS display links and accepts FPC and micro-coaxial terminations as well as crimped wire. Nothing about it crosses over to the DF14.
The 1.25mm class is where four manufacturers’ parts look alike and mate with nothing. Hirose DF14, JST GH, Molex PicoBlade and Molex PanelMate all occupy 1.25mm, and each has a different mating geometry.
KONNRA publishes an equivalent for each of them — which is the point of the table. A harness that has to transition from a DF14 on one board to a PicoBlade on the other is built in the cable, not by forcing a mate.

The locking variant: KR1258

The DF14’s retention is provided by the box header walls and the friction of the crimp socket. Where a design needs a positive lock — an assembly that is handled, or a cable that is routed with strain on it — KONNRA documents a locking version of the same 1.25mm DF14 interface as the KR1258 series, catalogued at 1.25mm pitch, 2 to 30 positions, 1A, 150V, single row. Its documented material set is PA66 / PA6T / UL94 / brass / phosphor bronze, its insulation O.D. limit is 0.90mm max (against the KR1255’s 1.00mm max), and its withstanding voltage is 500V AC per minute, with a −40°C to +105°C range, 30mΩ max contact resistance, 500MΩ min insulation resistance and tin over nickel plating.

Hirose’s DF14 catalog does not list a locking variant of the DF14 itself. So if your requirement is “DF14 interface, but it must latch”, the KR1258 is the part to put in the enquiry — and the mechanical envelope, not the pitch, is what has to be checked against your board.

Figure 3 — KONNRA KR1258 series: the 1.25mm locking version of the DF14 interface

Figure 3 — KONNRA KR1258 series: the 1.25mm locking version of the DF14 interface

➡️ KR1258 Series DF14 Wire to Board Connector with Lock

Specification Differences to Verify Before You Cross-Reference

Ten points deserve attention before you sign off a DF14 cross-reference. Two of them are cases where the two documents agree and the agreement is worth recording; the rest are genuine divergences.

Contact plating is the biggest gap. Hirose offers tin or gold; KONNRA documents tin only. Hirose’s DF14 series data lists contact plating as gold and tin and lists plating thickness values of 0.1μm and 0.76μm. The DF14 catalog’s material and finish table gives the crimp contact as “tin or gold plated” and the header contact as “tin or gold plated”, with the retention tab tin plated. KONNRA documents tin over nickel for the KR1255 terminal, the wafer contact and the wafer solder tab, with no thickness figure anywhere in the product page, the specification PDF or the drawing. That is not a small formatting difference: a gold-plated DF14 and a tin-plated equivalent are different parts for different mating-cycle budgets and different contact-stability requirements. If your design assumed gold, say so in the enquiry.

Durability is 30 cycles on both sides — but the contact resistance after cycling is not. Hirose specifies 30 insertion/withdrawal cycles for tin plating and 50 cycles for gold, with contact resistance held to 30mΩ max after the test. KONNRA specifies 30 cycles at a rate of no more than 10 cycles per minute, and permits 60mΩ max afterwards, against a 30mΩ max initial value. The cycle count agrees; the acceptance limit after cycling is twice as loose on the KONNRA side. If your assembly will be re-mated in service, quote the 60mΩ figure in your reliability budget, not the 30mΩ one.

Operating temperature differs by design margin — and Hirose’s figure is the conservative one. Hirose specifies −35°C to +85°C, and states explicitly that this range includes the temperature rise caused by current flow. KONNRA documents −40°C to +105°C, supported by its own qualification tests at −40±2°C for 96 hours (cold resistance) and 105±2°C for 96 hours (heat resistance). The KONNRA range is wider at both ends. Do not assume the wider range transfers to the Hirose part: if your application genuinely relies on operation above +85°C, that is a Hirose-side question, and if it relies on the KONNRA figure, ask for the temperature-rise data behind it.

The withstanding voltage agrees. Both sides say 500V AC per minute. This is worth stating plainly because 500V is exactly the kind of figure that gets mis-transcribed. Hirose’s DF14 catalog gives the withstanding voltage as “no flashover or insulation breakdown” at 500V AC per minute. KONNRA’s product page, specification PDF and drawing all give 500V AC per minute, and the specification adds the condition — applied for one minute between adjacent terminals or between a terminal and ground, with no breakdown and no flashover (EIA-364-20A). The two sides are consistent, and 500V is a genuine dielectric-withstand figure here, not a rated voltage copied into the wrong field. The rated voltage is separately stated as 150V AC/DC on both sides, and those agree too.

The headline ratings agree, but the measurement conditions behind them differ. Rated current is 1A per pin on the Hirose side and 1A on the KONNRA side, where the specification qualifies it as 1A at 26 AWG. Rated voltage is 150V AC/DC on both sides. Contact resistance is 30mΩ max on both sides — but Hirose measures it at 20mV or less with 1mA, while KONNRA measures it under a dry circuit at 20mV max and 100mA max (EIA-364-23C). The same number, measured at a hundred times the current. That does not make either figure wrong, but it does mean the two are not interchangeable evidence in a qualification report.

Position counts: thirteen catalogued counts versus a marketed 2–30 range. Hirose’s product-number structure enumerates 2 to 10, 15, 20, 25 and 30. KONNRA markets 2–30 pin, and its series drawing tabulates dimensions for 2 to 15, 20, 25 and 30, including 11, 12, 13 and 14 — four counts Hirose does not catalogue. Confirm which counts are actually tooled before a drawing depends on an intermediate position count.

Board height and mounting architecture: the 1.6mm offset type exists on the Hirose side only. Hirose catalogues the on-board header at 2.5mm and the offset header DF14H at 1.6mm, the latter in 20 and 30 positions with its own PCB mounting pattern. KONNRA documents a right-angle SMT wafer at a 2.5mm on-board height, and no offset variant. This is the difference most likely to invalidate a drop-in second source, because it is a board-level decision rather than a part-level one.

Insertion and extraction force are published on different bases. Hirose gives a per-contact figure of 0.15N min. (15gf) to 3N max. (300gf), measured with a 0.3mm square pin. KONNRA gives a per-connector figure that scales with position count — 2 positions: 1.60kgf max insertion, 0.10kgf min withdrawal; 10 positions: 4.00kgf / 0.50kgf; 20 positions: 7.00kgf / 1.00kgf; 30 positions: 10.00kgf / 1.50kgf, with the same withdrawal minimums required after 30 cycles. To compare them you have to divide the KONNRA figure by the position count and convert units. Do that arithmetic on your own assembly rather than accepting a side-by-side table that treats them as the same measurement.

The humidity requirement is stricter on the Hirose side. Both documents run a steady-state humidity test of 96 hours at 40±2°C and 90–95% RH. Hirose requires contact resistance 30mΩ max and insulation resistance 500MΩ min afterwards — the same insulation resistance as the initial requirement. KONNRA permits contact resistance 60mΩ max and insulation resistance 100MΩ min afterwards. For a humid-environment product this is the single most consequential test-condition difference in the comparison, and it is worth pinning to whichever figure your qualification plan assumed.

Soldering conditions are documented on both sides, but Hirose’s own two documents disagree with each other. Hirose’s DF14 catalog states manual soldering at 350°C for 3 seconds and does not quote a reflow peak; the DF14 product guideline PDF states manual soldering at 290°C for 2 seconds and a reflow profile with pre-heating at 150°C for 60 to 120 seconds and a soldering area at 250°C for 10 seconds maximum, up to 2 reflow cycles, with a recommended screen thickness of 0.15 to 0.2mm and a board warpage limit of 0.03mm at the connector. KONNRA documents a single reflow profile: pre-heat 150–200°C for 90–120 seconds, reflow minimum 230°C for 20–40 seconds, peak 255±5°C for 5–10 seconds, with no cycle count and no screen thickness stated. Run your own profile check before the first build — the KR1255 peak is a peak figure, while Hirose’s is a soak-and-peak window, and they are not the same statement.

Design and Use Notes

These are the handling and layout conditions the manufacturers themselves call out. They are the failure modes that account for most DF14 field problems.

Insert and remove parallel to the board. Hirose states in both the catalog and the product guideline that the connector must not be inserted or removed at an angle of 30° or greater, and that doing so will cause contact deformation or case damage. The instructed method is to hold the base of the cable, press the connector in with a finger, and withdraw it by pulling the cable evenly.
The four-wall header is there to prevent prying. The box shape stops the socket from being worked in at an angle; Hirose’s stated purpose for the walls is to prevent prying and mis-insertion and to keep the socket from rubbing the board. A connector treated as if the walls were cosmetic is how the retention tabs get peeled.
Retention tabs are a solder-peel defence, not a lock. Hirose adds phosphor-copper retention tabs to the header specifically to prevent solder peeling. They are not a latch, and they are not a substitute for the locking variant if your assembly is handled.
The boss hole is optional and the pattern must match the part. The with-boss header needs a φ1.1 +0.1mm hole; the without-boss version needs none. Order the version your pattern is laid out for.
Check the plug envelope, not just the footprint. On the offset type the assembly extends beyond the header outline because it sits at the board edge. Board edge clearance and the volume in front of the connector both have to be checked.
Board warpage matters at this pitch. Hirose’s limit is 0.03mm measured at the connector, referenced to both connector edges. At 1.25mm pitch a coplanarity problem that would be invisible on a 2.54mm part becomes a missing solder joint here.
The crimp is the reliability. Hirose states that the crimp height is the item that determines crimping quality, that the setting varies between tin-plated and gold-plated terminals on the same wire, and that it varies with the strand construction even at the same computed cross-section. KONNRA publishes the same conclusion as dimensions — separate crimp heights for 26, 28, 30 and 32 AWG and minimum crimp strengths from 2.27kgf down to 0.7kgf. Ask for the crimp condition table, whichever brand you buy.
Tooling and warranty. Hirose specifies its own applicators and press unit and states that the warranty does not cover problems caused by tools other than those it specifies. KONNRA does not document crimp tooling for the KR1255 terminal. If you build harnesses in-house, that is a question to ask before you commit the line.

Components and Configuration Options

The DF14 interface is a three-part system on both sides of the cross-reference: a board-mounted header, a cable-side housing and a crimp terminal.

KONNRA component	Part number	Documented specification
Right angle SMT wafer	`C1255RS1**09M0101RA`	1.25mm pitch, 2P–30P, single row, 150V, 1A, 30mΩ max, 500MΩ min, base PA6T UL94 V-0, contact brass, tin over nickel, white, UL E482542
Housing	`H12550**1901C`	1.25mm pitch, 2P–30P, single row, 150V, 1A, PA66 UL94 V-0, grey, UL E482542
Terminal	`T12550PT0101B`	1.25mm pitch, AWG 26#–32#, insulation diameter 1.00mm max, phosphor bronze, tin plated over nickel, 10,000 pcs per reel, UL E482542

Two documentation notes on those part numbers, both of which you should confirm in writing rather than assume:

The housing ordering code appears as undefined in the KR1255 specification PDF and as undefined in the housing drawing (the drawing shows three wildcard positions where the specification shows two). Confirm the digit count with KONNRA when you place the first order.
The straight (SMT 180°) wafer rows in the KR1255 specification’s material table are filled in as N/A, and the drawing set covers the right-angle SMT 90° wafer. The KR1255 is a right-angle series; there is no straight-mount KR1255 wafer documented.

Figure 4 — KR1255 SMT right-angle wafer

Figure 4 — KR1255 SMT right-angle wafer

➡️ KR1255 Right Angle Wafer

Figure 5 — KR1255 1.25mm pitch housing: the cable-side half of the interface

Figure 5 — KR1255 1.25mm pitch housing: the cable-side half of the interface

➡️ KR1255 Housing

Figure 6 — KR1255 1.25mm pitch terminal: the crimp contact

Figure 6 — KR1255 1.25mm pitch terminal: the crimp contact

➡️ KR1255 Terminal

Series documentation

What the Hirose DF14 Is Used For

Hirose lists the DF14’s applications as LCD (crystal panel) connections, note PCs, PDAs, small office equipment, video devices and other consumer products. The series’ own marketing position is about space: it exists so that signals can be routed where there is no room between boards, in a right-angle package that keeps the mated height down to 2.5mm, or 1.6mm in the offset version. Hirose also lists it under inverters, power conditioners, security systems and LED lighting in its application categories — the same package recurs wherever a small signal harness has to leave a board in a thin enclosure.

Application	Why the DF14 fits
LCD panel and display signal harnesses	The crimp-socket-to-header format terminates a discrete wire harness at a small panel connector, at 1.25mm pitch with a 2.5mm mated height
Note PCs, PDAs and small consumer devices	The series was catalogued around these products, and the low profile is the reason
Enclosures where 0.9mm of height matters	The offset `DF14H` type gets the board-mounted height down to 1.6mm at the board edge
High-position-count signal bundles	The range runs to 30 positions in a single row, which is where 1.25mm pitch earns its keep over 2.0mm
Automated SMT assembly lines	The header has a vacuum suction surface and comes in embossed tape for pick-and-place
Boards where the connector must not be pried	The four-wall box header and the retention tabs exist for exactly this failure mode
Inverters, power conditioners and security equipment	Hirose lists these categories for the series; the harness carries signals, not load current
LED lighting and general industrial signal wiring	Where a small wire-to-board interface has to mate repeatedly with a serviceable cable

What the DF14 is not for. It is not a power connector. At 1A per pin at 150V, it carries signal and modest supply current, not motor or lighting loads. It is also not a display-standard connector in the way the DF19 is: the DF14 terminates crimped discrete wire only, so a design that needs a flat flexible tail or a micro-coaxial run is a different series, not a different DF14 variant.

Cable assembly options

KONNRA builds assemblies on the KR1255 interface in the standard harness configurations:

Cable type	Description	Typical use
Single-headed	Housing on one end, bare wire leads on the other	Pigtail from a board header to a termination block
Same-side-head	Housing on both ends, same orientation	Extending a signal harness between two boards
Reverse-side-head	Housing on both ends, reversed orientation	Routing a harness through a hinge, fold or narrow channel
Adapter and transition cables	KR1255 on one end, another interface on the other — for example DF14 to JST GH, DF14 to Molex PicoBlade, or DF14 to a larger-pitch board connector	Where one board uses a DF14 header and the other end does not

DF14-to-PicoBlade and DF14-to-GH adapter harnesses are a common request, because all three interfaces sit at 1.25mm pitch, all three appear in the same products, and none of them mates with any other. The conversion has to happen in the cable. KONNRA’s harness division builds these to order.

Connector lead time is typically 2–3 weeks; wiring harness lead time is typically 3–4 weeks.

➡️ Explore KONNRA wiring harness capabilities

Sourcing the Hirose DF14: What Procurement Teams Ask

Engineering decides that a connector will work. Procurement decides whether the supply chain around it is safe.

“Can you be a second source without changing our design?” That is what a documented cross-reference is for. The KR1255 is specified against the Hirose DF14 at 1.25mm pitch, 2 to 30 circuits, 1A and 150V, as a right-angle SMT wafer with a housing and a crimp terminal — and its wafer dimensions reproduce Hirose’s on-board header dimensions at every catalogued position count. But we confirm equivalence against your specific part number, because position count, mounting height and plating all change the answer.

“What are your lead times?” Connector production lead time is typically 2–3 weeks. Wiring harness lead time is typically 3–4 weeks. Key materials are prestocked.

“How long for samples?” Complete connector set samples can be delivered within 45 days. Sample harnesses can be supplied from the same process used in production, which matters on a 1.25mm pitch part where the crimp quality is most of the reliability.

“What qualifications do you hold?” ISO9001, ISO14001, IATF16949, ISO45001:2018, ISO13485, IPC620, and UL product and operational safety certifications. Automotive-grade series additionally hold LV214 and US CAR-2. The KR1255 wafer, housing and terminal are each documented to UL file E482542.

“How do we know the parts match your documentation?” A CNAS-accredited laboratory with 45+ sets of precision testing instruments, with dimensional and electrical verification data available on request. 95% of production processes carry full-line intelligent visual CCD inspection; automotive series receive 100% CCD inspection.

“Are you a manufacturer or a trader?” A manufacturer. Dongguan Konnra Electronics Co., Ltd., founded 2004, with in-house mould design, injection moulding, stamping, assembly, and inspection — so the connector and the cable assembly come from one quality system.

“What volumes can you support?” KONNRA reported 2025 sales of RMB 310 million, with connectors at 60% and wiring harnesses at 40% of the product mix, across four production bases with automation coverage exceeding 95%.

“Who else buys from you?” KONNRA states that it serves global cooperative clients including BYD, Volkswagen, and DJI.

➡️ Request the vendor qualification pack — certificates, test capability summary, product drawings, and a sample plan in one enquiry.

How to Get a Cross-Reference Check on Your DF14 Part Number

Most DF14 sourcing enquiries stall on the same thing: the buyer is not sure what information the supplier needs, so the enquiry never gets sent. Here is the complete list.

Send us:

The original Hirose part number, if you have it — for example DF14-20S-1.25C(10), DF14-20P-1.25H(52), DF14A-30P-1.25H(65) or the contact DF14-2628SCFA
Position count — and note that Hirose catalogues thirteen: 2 to 10, 15, 20, 25, 30
Mounting style and board height — on-board at 2.5mm (DF14 with boss, DF14A without) or offset at 1.6mm (DF14H, 20 and 30 positions only)
Termination type — this series is crimped discrete wire; confirm whether your harness is built in-house or bought finished
Wire specification — gauge, strand construction and jacket diameter. Hirose specifies UL1571 construction with jacket diameters of 0.54 to 1mm across 26–32 AWG
Plating — tin or gold. This is the field where the cross-reference most often stops being a like-for-like substitution
Application, annual volume and whether you buy connectors or finished harnesses
A drawing or photo if the part number is unreadable or the design has been reverse-engineered

When you send a part number, we will confirm three things against Hirose’s own documentation: the board height and mounting style your suffix corresponds to, the plating and durability budget your application needs, and whether the position count you have chosen is available in our tooling. Those are the three places a DF14 cross-reference most often goes wrong.

What you get back: a mapped KONNRA part number with the relevant product and engineering drawings, a specification comparison against your original part, and a sample and quote plan.

Engineer’s Pre-Release Checklist

Run this before you release a drawing for a DF14-family connector.

Series confirmed by part number, not by pitch. DF13 and DF14 are both Hirose and both 1.25mm. DF19 is 1.0mm. None of them mate.
Brand confirmed. The DF14 is a Hirose series — there is no JST DF14. If your drawing says “JST DF14”, the drawing is wrong and the part number should be resolved before anything is ordered.
Board height decided and matched to the architecture. 2.5mm on-board, or 1.6mm offset. The offset type is a different PCB pattern, a different part number and a 20/30-position-only part.
Boss decision made. With boss needs the φ1.1 +0.1mm hole; without boss needs none. Confirm which one your pattern and your part number specify.
Plating specified and understood. Hirose offers tin and gold with different durability ratings (30 versus 50 cycles); KONNRA documents tin over nickel. If your qualification assumed gold, raise it now.
Current and voltage checked against the real values — 1A per pin at 150V AC/DC, with the KONNRA rating qualified as 1A at 26 AWG.
Temperature budget compared line by line. Hirose −35°C to +85°C including current-flow temperature rise; KONNRA −40°C to +105°C.
Contact resistance acceptance limit set for the right state. 30mΩ max initial on both sides; 30mΩ max after durability on the Hirose side, 60mΩ max after durability on the KONNRA side.
Humidity acceptance limit set. Hirose holds 500MΩ min after the steady-state humidity test; KONNRA permits 100MΩ min.
Insertion and extraction force normalised to the same basis. Hirose publishes per contact; KONNRA publishes per connector, by position count.
Jacket diameter inside the specification — 0.54 to 1mm for 26–32 AWG, 1.00mm max on the KONNRA side.
Strip length set on the harness drawing — 1.2 to 1.9mm (Hirose), 1.3 to 1.8mm (KONNRA).
Crimp height and crimp strength specified per gauge, not left to the operator. KONNRA publishes both; Hirose’s are in the crimp condition table supplied with the applicator.
Soldering profile checked. One reflow profile to verify on the KONNRA side (pre-heat 150–200°C for 90–120 seconds; minimum 230°C for 20–40 seconds; peak 255±5°C for 5–10 seconds), against Hirose’s soak-and-peak window and its two, differing manual-soldering figures.
Board warpage budget accepted — Hirose’s limit is 0.03mm at the connector.
Insertion and removal angle controlled in the work instruction — never 30° or greater.
Crimp tooling identified. Hirose requires its approved applicator and press and states that other tooling is outside warranty; KONNRA does not document crimp tooling.
UL recognition confirmed if it is a requirement. KONNRA documents UL file E482542 for all three KR1255 components; Hirose’s DF14 series data lists no industry or safety standard, unlike the DF13 series which is explicitly labelled “UL Certified”.

➡️ Send us your drawing. We will review it against the KR1255 specification and come back with any mismatch we find — before you commit tooling. Submit a drawing for review

Why Source DF14 Connectors from KONNRA

Dongguan Konnra Electronics Co., Ltd. (brand: KONNRA) was founded in 2004 and is a National High-Tech Enterprise specialising in connector and wiring harness research, development, production, and sales.

Manufacturing depth. A vertically integrated process covering precision mould design and manufacturing, automation design, precision injection moulding, stamping, assembly, and CCD visual inspection. Automation coverage exceeds 95% across production lines.

Testing and validation. A CNAS-accredited laboratory with 45+ sets of precision testing instruments, and CAE analysis — contact nonlinear analysis, material nonlinear analysis, motion simulation, thermal field analysis, and high-frequency analysis — performed in Ansys 2022 R1. Verification data is available on request.

Inspection coverage. Full-line intelligent visual CCD inspection covers 95% of production processes, using Mitsubishi and Panasonic PLC control systems with FA25–35mm optical lenses and 5-megapixel cameras. Automotive connector series receive 100% CCD visual inspection.

Quality systems. ISO9001, ISO14001, IATF16949, ISO45001:2018, ISO13485, IPC620, and UL product and operational safety certifications, with automotive-grade series additionally certified to LV214 and US CAR-2.

Capacity and delivery. Production bases in Dongguan Wangniudun (30,000 m², 350+ employees), Dongguan Changan (10,000 m², 150+ employees), and Hunan Daoxian (2,600 m², 100+ employees), with regional offices in Beijing, Chongqing, Hunan, Shanghai, and Kunshan. Key materials are prestocked, and complete connector set samples can be delivered within 45 days. KONNRA reported 2025 sales of RMB 310 million, with connectors at 60% and wiring harnesses at 40% of the product mix, and has served global cooperative clients including BYD, Volkswagen, and DJI.

Custom and joint R&D. Where a standard part does not fit — an unterminated position count, a specific mounting height, or a harness that has to transition between two interfaces — KONNRA supports customer joint R&D customisation.

How to Identify Whether Your Connector Is a DF14

If you are holding a connector and a drawing you cannot match, work through these in order:

Measure the pitch — centre-to-centre between adjacent contacts. 1.25mm points at Hirose DF13 or DF14, JST GH, or Molex PicoBlade or PanelMate. 1.0mm points at Hirose DF19.
Measure the height above the board when mated. 2.5mm or 1.6mm points at the DF14. 3.4mm or more points at the DF13. This single measurement separates the two Hirose 1.25mm families faster than anything else.
Count the positions. The DF14 is catalogued in 2 to 10, 15, 20, 25 and 30. If you count 40, you are holding a DF13.
Measure the contact field. The crimp socket’s B dimension is 1.25mm × (positions − 1), and the on-board header’s A dimension is that same field plus 6.20mm. A contact field that does not reproduce this is a different series.
Look at the box. A DF14 header is a four-wall box with retention tabs. The walls exist to stop the socket from rubbing the board.
Check the cable side. A DF14 socket is a moulded polyamide housing with crimped discrete wire entering it — no flat cable, no coaxial tail. If the mating half is an FPC or a coax assembly, it is not a DF14.
Look at the plating colour. Tin or gold. Both are DF14; the difference sets the durability rating.

If you are still unsure, photograph the connector next to a ruler, with the part number markings visible if any, and send it to us. On a 1.25mm pitch part a photo identifies the pitch reliably; the part number identifies the series.

Frequently Asked Questions

What is a Hirose DF14 connector?

A 1.25mm pitch, single-row, low-profile crimp wire-to-board connector supplied in 2 to 10, 15, 20, 25 and 30 contacts. It is part of Hirose’s SignalBee™ signal-cable brand and is rated 1A per pin at 150V AC/DC over −35°C to +85°C. Its two defining features are the box-shaped four-wall header that prevents prying and board rubbing, and the two board-mounted heights — 2.5mm on-board and 1.6mm in the offset type.

Is the DF14 a JST connector?

No. The DF14 is a Hirose Electric series. There is no JST series designated DF14. The mix-up is common because small crimp-style wire-to-board connectors from both brands are informally called “JST connectors” — JST stands for Japan Solderless Terminal — and because Hirose’s DF14 and JST’s GH are both 1.25mm pitch. They do not mate.

What is the difference between the DF14 and the DF13?

Both are Hirose and both are 1.25mm pitch, but they are different families. The DF14 is single-row, 1A, and low profile at 2.5mm on-board or 1.6mm offset. The DF13 is a miniature crimping line catalogued in 2 to 15, 20, 30 and 40 positions, in one or two rows, with currents of 1.0A and 2.5A and connector heights from 3.4mm to 5.4mm, in both SMT and THT. KONNRA’s equivalents are KR1255 for the DF14 and KR1256 for the DF13.

What is the KONNRA equivalent of the Hirose DF14?

The KONNRA KR1255 series — a 1.25mm pitch wire-to-board connector documented from 2 to 30 circuits at 1A and 150V, offered as a right-angle SMT wafer with a housing and a crimp terminal, with a −40°C to +105°C range and tin-over-nickel plating.

How many pins does the DF14 have?

Thirteen catalogued counts: 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25 and 30. The contact field follows a fixed rule — the crimp socket’s B dimension is 1.25mm × (positions − 1) — so a 20-position DF14 has a 23.75mm contact field and a 26.95mm overall socket length.

What board height does the DF14 have?

Two, depending on the version. The on-board type (undefined with boss, undefined without) has a board-mounted height of 2.5mm. The offset type (undefined) is lower, at 1.6mm, and is catalogued in 20 and 30 positions only, with its own PCB mounting pattern.

What is the current and voltage rating of the DF14?

1A per pin at 150V AC/DC, with a withstanding voltage of 500V AC per minute and an insulation resistance of 500MΩ min. at 100V DC. The operating temperature range of −35°C to +85°C includes the temperature rise caused by current flow — that is Hirose’s own note, and it is why the range should not be treated as a pure ambient figure in a high-current application.

What wire does the DF14 use?

UL1571 construction with a tin-plated annealed copper conductor, in 26, 28, 30 and 32 AWG, with conductor constructions of 7/0.16mm, 7/0.127mm, 7/0.1mm and 7/0.08mm and jacket diameters of 0.54 to 1mm. Hirose states that solid wire, wire with polyester threads and tin-coated wire should not be crimped, and that two cables should not be crimped together. Strip length is 1.2 to 1.9mm. KONNRA’s documented window is AWG 26# to 32# with an insulation O.D. of 1.00mm max.

Can the DF14 connect to an FPC?

No — FPC termination is not a DF14 feature. Hirose’s DF14 series data lists the wire termination method as crimping, the recommended wire type as discrete wire, and leaves the applicable FPC cable thickness field blank; the catalog’s product-number structure has one cable-side type, the crimping socket (undefined), with no FPC plug. FPC and micro-coaxial termination belong to Hirose’s DF19 family, which is a 1.0mm pitch series and a different interface. If your requirement is a flat cable tail, you are looking at the wrong series — and it is worth checking where that requirement started, because “DF14 with FPC” is a recurring mistake.

What is the mating durability of the DF14?

30 insertion/withdrawal cycles with tin plating and 50 cycles with gold plating, with contact resistance held to 30mΩ max after the test. KONNRA specifies 30 cycles, with contact resistance allowed to reach 60mΩ max afterwards. If your service model depends on re-mating the connector, the plating choice in the Hirose line and the post-cycling limit on the KONNRA line are both part of the answer.

Do the DF14 and the KONNRA KR1255 have the same footprint?

The on-board header footprint geometry matches. KONNRA’s wafer drawing lists header dimensions of 7.45, 8.70, 9.95, 11.20, 12.45, 13.70, 14.95, 16.20, 17.45, 23.70, 29.95, 36.20 and 42.45mm for 2 to 30 positions, which reproduce Hirose’s on-board header A dimensions at every catalogued count, and contact field dimensions from 1.25mm to 36.25mm that match as well. The offset (undefined) footprint is not documented on the KONNRA side, so a 1.6mm design is not a footprint match. Verify against your own library footprint and the current drawings before you commit.

Can I use the DF14 and the KR1255 in the same harness?

They mate at the same 1.25mm interface, which is the point of a cross-reference. What you should not do is mix them without checking the two parameters that differ mechanically between documents: plating (gold versus tin over nickel) and, on the original part, board height (2.5mm versus 1.6mm offset). Where a harness has to leave the DF14 interface and land on something else — JST GH, Molex PicoBlade, or a larger pitch — KONNRA builds that transition into the cable rather than forcing an intermate that does not exist.

Can I use non-Hirose crimp tools on the DF14?

Hirose states that the warranty does not cover problems caused by tools other than those it specifies, and its crimping precautions repeat that crimping with non-specified tools is outside the scope of warranty. The specified combination for this series is the AP105-DF14-2628S or AP105-DF14-3032S applicator with the CM-105C press unit, plus manual crimp tools DF14-2628/CR-HT and DF14-3032/CR-HT and the extraction tool DF-C-PO(B). If you build harnesses in-house this constrains your tooling; if you buy finished harnesses it becomes a question to ask your supplier.

Where is the DF14 used?

LCD panel connections, note PCs, PDAs, small office equipment, video devices and other consumer products, as catalogued by Hirose, plus the application categories Hirose lists for the series — inverters, power conditioners, security systems and LED lighting. In current practice the same package appears wherever a small signal harness leaves a thin enclosure or a display module: industrial HMI, handheld instruments, medical front panels and portable equipment. KONNRA’s own application note for the KR1255 points at medical, multimedia and portable equipment, where stable signal transmission and vibration-shock resistance matter.

How long does it take to get samples?

KONNRA can deliver complete connector set samples within 45 days. Connector production lead time is typically 2–3 weeks and wiring harness lead time typically 3–4 weeks.

Start Your Cross-Reference Check

KONNRA supplies the KR1255 series as individual components or as complete pre-crimped cable assemblies, and builds adapter and transition harnesses to order.

Request a quote — KR1255 pricing, MOQ and configuration options for your position count, board height and plating requirement
Request a sample — complete connector set samples within 45 days
Request cross-reference verification — confirm KR1255-to-Hirose-DF14 equivalence against your specific part number, including whether the board height your design uses is covered
Request drawings — series engineering drawing, product specification, package specification and per-component product drawings
Request a vendor qualification pack — certificates, test capability summary and quality documentation
Request adapter harnesses — DF14 to JST GH, DF14 to Molex PicoBlade, or DF14 to another interface on the far end of the cable
Submit a drawing for review — we will flag any specification mismatch before you commit tooling

Contact KONNRA Electronics

Phone: (86)-769-85449875
Email: info@konnra.com
Address: No.6 Nanchang South Road, Chijiao, Wangniudun, Dongguan, Guangdong, China
Contact us

Sources and method. Every Hirose figure in this guide is taken from Hirose Electric’s published DF14 documentation: the DF14 series page (series positioning under the SignalBee™ brand as a 1.25mm pitch low-profile crimp connector; the three stated features of low profile, pick-and-place mounting and four-wall design; the on-board board-mounting height of 2.5mm; position counts; rated current 1A and rated voltage 150V AC and 150V DC; single row; 1.25mm mounting and contact pitch; connector length, width and height values; SMT mounting style with standard on-board and standard off-set mounting sides; soldering as the PCB stabilizing feature; right-angle orientation; mating/unmating cycles of 30 and 50; contact plating of gold and tin; plating thickness values of 0.1 and 0.76μm; beige housing; crimping as the wire termination method with discrete wire as the recommended wire type; recommended wire sizes; the −35°C to +85°C operating range; and the listed application categories). The DF14 series catalog (the on-board type DF14(A) board-mounted height of 2.5mm and the offset type DF14H board-mounted height of 1.6mm; the pick-and-place vacuum suction surface and embossed tape packaging with tube packaging for the on-board type; the four-wall design description including prying and mis-insertion prevention, board friction from the socket and retention tabs against solder peeling; the LCD, note PC, PDA, small office equipment and video device applications; rated current 1A/pin; rated voltage 150V AC/DC; the −35°C to +85°C operating range and its note that it includes temperature rise due to current flow; operating humidity 40–80%; storage temperature −10°C to +60°C and storage humidity 40–70%; insulation resistance 500MΩ min. at 100V DC; withstanding voltage of 500V AC per minute with no flashover or insulation breakdown; contact resistance 30mΩ max. measured at 20mV or less and 1mA; insertion/extraction force 0.15N min. to 3N max. with a 0.3mm square pin; the vibration, steady-state humidity and temperature-cycle test conditions; mating durability of 30 cycles with tin plating and 50 cycles with gold plating at 30mΩ max; soldering heat resistance with manual soldering at 350°C for 3 seconds; the material and finish table covering polyamide UL94V-0 insulators, phosphor copper and brass contacts with tin or gold plating and tin-plated retention tabs; RoHS2; the product number structure and all its field definitions; the crimp socket, header and contact part numbers with their A, B, C and D dimensions, packaging suffixes, bag and reel quantities; the φ1.1 +0.1mm boss hole and the note that no hole is needed without a boss; the on-board and offset PCB mounting patterns; the embossed carrier tape and reel dimensions; the applicable crimp tooling part numbers and the statement that the warranty does not cover problems caused by other tools; the crimping precautions including the prohibition on solid wire, polyester-thread wire and tin-coated wire and the note that crimp height varies with plating and strand construction; the reflow conditions, screen thickness of 0.15–0.2mm and board warpage limit of 0.03mm; the 30° insertion and removal angle limits; and the statement that catalog specifications are reference values). The DF14 product guideline PDF (the reflow profile of pre-heating at 150°C for 60 to 120 seconds and a soldering area of 250°C for 10 seconds maximum at 220°C minimum for 60 seconds maximum with up to 2 cycles; the manual soldering figure of 290°C for 2 seconds; screen thickness of 0.15 to 0.2mm; the 0.03mm board warpage limit; and the insertion and removal angle precautions). The DF13 series page (its 1.25mm pitch positioning as a miniature crimping connector, its UL certification, position counts, single- and double-row configurations, rated currents of 1.0A and 2.5A, 150V AC/DC, connector heights, SMT and THT mounting styles, straight and right-angle orientations, mating cycles, plating finishes and plating thickness values, and wire sizes) is used solely for the DF14-versus-DF13 comparison. Every KONNRA figure is taken from KONNRA’s own documentation: the KR1255 product page for the Hirose DF14 cross-reference (pitch, circuits, current and voltage; the general specification table covering material, insulation O.D., withstanding voltage, temperature range, contact resistance, insulation resistance and plating; the low-profile description including the 2.5mm on-board height, automated assembly suitability and four-sided enclosure design; and the medical, multimedia and portable equipment applications). The KR1255 specification PS-KR1255-01, revision A1, dated 2022/2/26 for the component part numbers, the material and surface-treatment table, the ratings and applicable-wire table including the 1A at 26 AWG qualifier and the 1.00mm maximum insulation O.D., and the section-by-section electrical, mechanical and environmental test conditions and requirements — contact resistance, insulation resistance and dielectric strength with their EIA test references; terminal insertion force, retention force and pin retention force; the crimp width, height, strength and stripping table; durability, temperature rise, vibration, shock, heat, cold, humidity, thermal shock, salt spray, solderability and solder heat resistance; the insertion and withdrawal force table by position count; and the SMT infrared reflow condition. The KR1255 series engineering drawing for the housing, terminal and SMT 90° wafer specification blocks, part numbers, dimension tables, materials and finishes. The KR1255 SMT 90° wafer, housing and terminal product pages for the per-component specification blocks, the 2P–30P ranges, the PA6T and PA66 UL94 V-0 materials, colour, plating and the UL E482542 reference. The KR1258 product page for the locking variant’s specification table. The KONNRA 1.25mm pitch index for the position counts, currents, voltages and row configurations of the other 1.25mm families named in the comparison table. Lead times, sample lead times and the company figures in the “Why Source DF14 Connectors from KONNRA” section are as published by KONNRA. Figures described as “Not documented” were absent from the manufacturer documentation reviewed for this guide and should be confirmed against the current Hirose DF14 catalog and the KR1255 product specification before release.

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