With the rapid development of modern electronic devices, the connection methods between electronic components are constantly being innovated. As an innovative press-fit terminal, the fish-eye terminal, with its unique structural and performance advantages, has rapidly emerged in fields such as communication and in-vehicle electronics. It breaks through many limitations of traditional connectors with its weld-free connection method.
The basic structure of the fish-eye terminal consists of a base, two elastic parts, and a pin part. The elastic parts are in an arc line shape, and the two elastic parts are arranged oppositely, enclosing together to form a unique fish-eye hole. This structural design plays a key role during assembly. When the fish-eye terminal is inserted into the conductive hole of the circuit board, the two elastic parts are squeezed and will elastically contract, just like the flexible closure of a fish eye, thus smoothly achieving a tight fit with the conductive hole and completing the electrical connection with the circuit board.
The combination of the fish-eye terminal and the PCB board adopts a solderless connection method. In practical applications, the installation and removal of the fish-eye terminal are very convenient. When the connector is damaged, there is no need for complex soldering operations. The fish-eye terminal can be directly removed from the PCB board and replaced with a new terminal, greatly improving the maintenance efficiency and reducing the maintenance cost. In addition, due to the large contact area between the fish-eye terminal and the circuit board, the interaction force is stronger, which can effectively reduce the contact resistance and heat generation, enabling it to adapt to application scenarios with large currents and meet the demand for large current transmission in communication, in-vehicle electronic products, etc.
(Fish-eye Terminal Pair, Photo by Conray)
To meet the connection requirements in dynamic environments such as automobiles and industrial equipment, Conray has developed the fish-eye terminal pair, optimizing the structural design to enhance stability. The dual-hole structure can better disperse the stress, form multi-point fixation, and effectively reduce the rotation or loosening of the terminal caused by vibration or external force, making it suitable for high-vibration scenarios. At the same time, for the fish-eye terminal pair, the current distribution is uniform and the contact resistance is lower. The dual contact points can disperse the current path, improving the stability of current application. The multi-point contact reduces the impact of oxidation or contamination on a single contact surface, making the electrical conductivity more reliable during long-term use.
As a right-angle weld-free terminal, the Conray fish-eye terminal pair adopts a weld-free connection technology. Its rated AC and DC current reaches 3A, which can stably and continuously transmit current and meet the power consumption requirements of various electrical equipment. The operating temperature range of -40°C to +105°C ensures normal operation in various complex environments. The maximum contact resistance is only 5mΩ/Max., greatly reducing power loss and heat generation and ensuring efficient and stable electrical connection. For complex environments or scenarios with extremely high stability requirements, the Conray fish-eye terminal pair also offers the option of soldering to provide a long-lasting and firm connection effect.
Due to differences in parameters such as the cross-sectional area and electrical conductivity of wires of different sizes, the sizes of the fish-eye terminals that match them also vary. The Conray fish-eye terminal pair is suitable for wires with a wire gauge of 22AWG – 28AWG, accurately matching wires of different specifications, and has strong connection compatibility, being widely applicable to many fields such as communication and automotive electronics.
(Parameters of the Fish-eye Terminal Pair, Photo by Conray)
