This is circle metal dome used in micro switch, light snap force, good clicking fee, low contact resistance. Here are some details:

1) Raw material: phosphor bronze, with Silver plating at contact side;
2) Resistance: less than 0.1 ohm
3) Force: 80gf, 100gf, 130gf, 160gf, 180gf;
4) Height: 0.2-0.3mm
5) No dimple
6) Life cycle: 100,000-300,000 times

Please mention force you need when release order for this circle dome. For more, please contact us.