SS-QFE Spring Pin (Pogo) Sockets-PART 1-9 · Ironwood

Spring Pin Sockets

The Spring Pin Socket line allows very high endurance and wide temperature range testing of 0.3mm to 1.27mm pitch BGA, LGA, QFN, QFP and SOIC devices on the same footprint as other Ironwood socket technologies. This allows different PCB’s with same footprint to accomplish many different test applications.

CATALOG

Description

Sockets for High Temperature & High Endurance Applications

Spring pin sockets provide high bandwidth in a small, cost effective design. Spring pin socket is a simple, mechanical socket based on Pogo (spring) pin technology. Spring pin socket is a solder-less socket that can be mounted on to a PCB using supplied hardware. The PCB should have mounting and alignment holes at proper locations (page 2 of the individual socket drawing shows recommended PCB layout information). The typical Spring pin socket footprint is only 5mm larger than the maximum IC size which means series resistors, capacitors, tuning inductors and others can be placed minimal distance from IC in GHz applications. The socket is mounted to the PCB with a backing plate and for all IC body sizes, spring pin sockets require a rigid metal backing plate to prevent deflection of the target circuit board due to a high normal force required to compress the spring pins. If the backside of the target PCB contains capacitors and resistors, a custom insulation plate with cavities cut for those components can be designed. This insulation plate sandwiches between the backing plate and target PCB. The socket is constructed of aluminum to dissipate up to several watts without extra heat sinking and can handle up to 100 watts with custom heat sink. The user simply places the IC into the socket, closes the lid, and rotates the heat sink screw to connect the IC. It is compatible with the alternate SG-BGA (elastomer) socket footprint and other socket technologies as well. If there are pre-existing holes in the PCB, a Spring pin socket can be custom designed to accommodate those holes.

 PART
NUMBER 
 RoHS   IC Size
X (mm)
 IC Size
Y (mm)
 IC Size
Tolerance mm
 SS-QFN104A-01   yes   12   12   0.1 
 SS-QFN10A-01   yes   2.5   2.5   0.1 
 SS-QFN12D-01   yes   2   2   0.1 
 SS-QFN12E-01   yes   3   3   0.1 
 SS-QFN144A-01   yes   11   11   0.1 
 SS-QFN204A-01   yes   12   12    
 SS-QFN20A-01   yes   4   4   0.15 
 SS-QFN20F-01   yes   3   3   0.1 
 SS-QFN40A-01   yes   6   6   0.1 
 SS-QFN48C-01   yes   7   7   0.1 
 SS-QFN48J-01   yes   14.2   14.2   0.1 
 SS-QFN68A-01   yes   10   10   0.1 
 Top
Pitch mm
 IC
Array X
 IC
Array Y
 Max
Pincount
 Max
Pkg Code
 Part
Description
 0.4   26   26   104   QFN104A   Spring Pin (Pogo) Sockets 
 0.5   5   N/A   10   QFN10A   Spring Pin (Pogo) Sockets 
 0.4   5   2   12   MLF12D   Spring Pin (Pogo) Sockets 
 0.5   6   N/A   12   QFN12E   Spring Pin (Pogo) Sockets 
 0.5   36   36   144   QFEN144A   Spring Pin (Pogo) Sockets 
 0.5   35   21   204   QFN204   Spring Pin (Pogo) Sockets 
 0.5   5   5   20   QFN20A   Spring Pin (Pogo) Sockets 
 0.4   5   5   20   QFN20F   Spring Pin (Pogo) Sockets 
 0.5   10   10   40   QFN40A   Spring Pin (Pogo) Sockets 
 0.5   12   12   48   QFN48C   Spring Pin (Pogo) Sockets 
 1   12   12   48   QFN48J   Spring Pin (Pogo) Sockets 
 0.5   17   17   68   QFN68A   Spring Pin (Pogo) Sockets