The M50-1900005 is a 2-position shunt Jumper Socket for use with pin headers. Phosphor bronze base of contact with gold finish/plating on contact surface and UL94V-0 rated black polyamide (nylon 6.6) housing. It has female/socket contact, 1A current rating and vertical connector orientation. It can be fitted and removed by hand, giving an alternative on-board programming method to DIP switches.