The TS-1109TP-B tactile switch, manufactured by XKB, is a single pole, single throw (SPST) surface mount switch with a rating of 100mO, 50mA, and 12V DC. It is a black, 3.15mm round button with a 6.4mm mounting diameter, a 4.8mm board thickness, and a 160gf operating force, and is RoHS compliant. This switch is able to operate at temperatures ranging from -30? to +85?, and has a life cycle of up to one hundred thousand operations.