ALPS Electric co., LTD. Tact Switch SKQK Products Line Model Operation force Travel Ratings (max.) Lifetime (5mA 5V DC) Initial contact resistance Stem color Variety SKQKAA 0.98N {100gf} 0.25mm 50mA 12V DC 500mΩ max. Black Stem height h=5mm SKQKAB 1.568N {160gf} Dark gray SKQKAD 0.98N {100gf} Black Stem height h=7mm SKQKAE 1.568N {160gf} Dark gray SKQKAJ 0.98N {100gf} 　 Black Stem height h=9.5mm SKQKAK 1.568N {160gf} Dark gray Dimensions                Unit : mm       Circuit diagram Printed circuit board land dimensions (When viewed from the switch mounting face)