The TS-1102SD-C-H-B, an SPST SMD tactile switch manufactured by XKB, is a plastic-encased, snap-acting, black round-button switch rated for 100 milliohms of contact resistance. It is a surface-mount device (SMD), with 6mm long pins and a height of 7.5 mm, a weight of 260gf and a rated current of 50 milliamps. The switch is designed to operate in temperatures ranging from -20? to +70?, and is RoHS compliant. With a whopping 300000 rated cycles, this device is sure to last a long time.