SHC Board-to-Wire Connectors JST Automotive Connectors SHC Board-to-Wire Connectors is a small, high-performance, high-reliability connector series designed for wiring in automotive electrical equipment. The series features a hybrid structure that uses 0.64 terminals for signal and 2.3 terminals for power supply. Improved reliability is provided through a retainer (secondary lock). The JST Automotive Connectors SHC has a current rating of 7A, and the voltage rating is 50V.