3.50 mm SMT audio jack with dual switches
The SJ2-35894D-SMT-TR is the 4-conductor, 6-contact member of CUI Devices' SJ2 phone jack series, accepting a standard 3.50 mm (1/8") mini plug. Silver-plated contacts on brass and copper alloy carry 1 A at 12 VDC; two internal switches allow detection of plug insertion or tip-ring states without external sensing.
