TThe YTSB001A0381801B is a tactile switch manufactured by DGBZT that is suitable for surface mount assemblies. It features no SMD splicing, 50mA rated current, 7.7mm maximum height, 100MO rated resistance, 20000 operating cycles, 180gf actuation force, 12V rated voltage, 3.55mm mounting hole diameter, 3.8mm plunger diameter, and black square plunger shape. It is RoHS certified.