Featured specification: Electrical characteristics: Contact rating: contact circuit rating: 30vdc, 33ma; 10vdc, 100ma Open circuit resistance: dc250v 100mohm min Reverse voltage: 205v/minute Circuit resistance: 150ohm max. Switch stroke: 0.15 - 0.2mm Operation: momentary Operating temp: 0 ~ +60c Storage temp: -25 ~ +75c Humidity: 95%rh at 25c Actuations time: 1, 000, 000 for flat keys, over 300, 000 times for metal dome, over 100, 000 times for mylar dome Operating force: 100 - 300g Emi, rfi and esd shielding Material of overlay: polyester (textured) or polycarbonate (matt and glossy) Transparent and abrasion resistant window Led & resistor sticked Multi-color, reverse side printing Standard export carton
