6.35 mm phone jack with two internal switches
The MJ-63042J is a 6.35 mm (1/4 inch) phone jack from CUI Devices, configured as a female connector with 2 conductors and 4 contacts. Rated 1 A at 12 VDC, it terminates via solder to a through-hole right-angle PCB mount and includes two internal switches for signal routing.
Switch contacts and mating depth
Two internal switches allow the jack to detect plug insertion or route signals between normally-closed and normally-open paths — the mating depth is 1.220" (31.00 mm).