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Stamped Spring Pin Socket for Capacitive Touch-Key Sensor QFN used in Smart Phones

Thu, 09/09/2010 - 8:20am
Ironwood Electronics recently introduced a new QFN Socket addressing high performance requirements for 0.4 mm pitch devices - SBT-QFN-4008. The contactor is a stamped spring pin with 34 gram actuation force per pin and cycle life of 100,000 insertions.

The self inductance of the contactor is 1 nH, insertion loss of
To use, drop IC into the socket, place floating compression plate, swivel the lid, and apply down force using compression screw. This socket can be used for hand test and quick turn custom burn-in applications with the most stringent requirements.

  These socket product lines have been designed to the JEDEC STD. MO-220 and are available for all standard configurations. Custom designs are also available. SBT-QFN-4008 socket features a unique contact design with outside spring and flat etched plungers that provide a robust solution for Burn-in & Test applications including excellent electrical signal integrity to meet the requirements of today’s demanding analog, digital, RF, Bluetooth and telecom applications.

The socket is mounted using supplied hardware on the target PCB with no soldering, and uses smallest footprint in the industry. The smallest footprint allows inductors, resistors and decoupling capacitors to be placed very close to the device for impedance tuning. The socket also incorporates a new quick insertion method so that ICs can be changed out quickly.

 
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