The TC-6610-4.3-160G is a tactile switch manufactured by HCTL with a 4.3mm black button that is round, straight, and SPST (Single Pole Single Throw). It has a working current of 50mA and operating temperature range between -25? to +85?. In addition, it has a maximum insulation resistance of 100MO, mechanical life of 80,000 cycles, rated voltage of 12V, and rated force of 160gf @ ±50gf. Finally, the switch conforms to the safety requirement of ROHS.