Micro miniature push button switches sci r13 81 black micro miniature push button switch round actuator single pole off on operation 500ma contact current 125v ac contact voltage brass contact nickel plated non illuminated solder lug terminal 52mm panel 29mm actuator 12mm high a micro miniature push switch with actuator in black with single pole momentary push to make contacts initial contact resistance 50mr sci r13 81 series micro push button switch black