The TS-KG89S-AT25F tactile switch is a surface mount switch manufactured by Hanbo Electronic. It has a 50mA current rating, a 4.2mm profile, a 100MO resistance, a 100000 cycle operating life, a 12V voltage rating, a 250gf force rating at ±50gf, a 3.25mm top size, a 2.5mm bottom size, an oval button and a white brick nogging. It is compliant with ROHS standards.