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SBT / CBT — Stamped Spring Pin Sockets

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SBT / CBT

Package Types BGA, LGA, QFN, QFP, SOIC
Pitch Range 0.3mm – 1.27mm
Bandwidth 4 GHz – 31.7 GHz @-1dB
Temperature Range -55°C to +180°C
Insertion Life >500,000 cycles
Contact Resistance <15 mΩ

Stamped spring pin contact technology for burn-in and test applications demanding wide temperature range and high endurance, with better electrical and mechanical performance than conventional pogo pin sockets.

SBT’s stamped Beryllium Copper contact combines an outer spring, inner leaf spring, and stainless steel core, assembled on an automated zero-defect line and rated for 500,000 cycles across -55°C to +180°C in a footprint 2.5mm per side larger than the chip. The socket geometry matches GHz elastomer and Giga-Spring footprints for switching contact tech on the same PCB, with screw, epoxy, or SMT emulator base mounting and optional clamshell lids for hand test and burn-in.

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Overview

SBT/CBT sockets are Ironwood’s stamped spring pin solution — delivering high endurance and wide temperature performance across BGA, LGA, QFN, QFP, and SOIC packages from 0.3mm pitch. The preferred choice for burn-in and production test environments where cycle life and temperature range are the primary selection criteria.