This 4 Pin SPST Round Button Tactile Switch has a 6mm switch width, 12mm switch height, and 6mm switch length, along with a round button actuator style and black cap color. The switch is designed for brick nogging mounting and has a Gull Wing pin style. With a contact current of 50mA and a voltage rating of 12V DC, this switch is ideal for a variety of applications. The circuit configuration is SPST, and the insulation resistance is >100MOhm. The switch has a wide operating temperature range of -20C~+85C.