Electronic Products & Technology

Spring pin sockets are easy to customize

EP&T Magazine   

Electronics Interconnect Ironwood pin sockets Spring

IRONWOOD ELECTRONICS ESS Spring Pin sockets can be easily customized for specific test height, force, plating finish, materials, etc. The spring pin functions as the interface between the IC package and the circuit board. These contacts support up to 34GHz bandwidth with standard designs, and with customization, impedance can be matched for highest electrical performance. IC packages have various application requirements, which is why customization is critical to meet the specific IC test requirements. Double-ended spring probes are primarily comprised of two plungers and spring. The spring (gold plated stainless steel or music wire) is sandwiched between two plungers (gold plated hardened Beryllium Copper). The spring has both open and offset closed coils, where both plungers interface within the closed coil area, enabling signals to pass straight through rather than inductively looping through the open coils. The spring probes have current ratings in the range of 1A to 4A based on geometry and material selection. The operating temperature range is -55C to +150C for stainless steel springs, and -55C to +120C for music wire springs.

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