Temperature: -30 ~ + 70 ℃ Withstanding Voltage: AC250V Rated Load: DC12V 50mA Contact resistance: ≤0.03Ω Insulation resistance: ≥100MΩ Features instant contact, 4 pins, round black push-button, through hole mount, 6 x 6 x 5 mm size etc. Used in electronics and appliances Precision mechanism design provides sharp operation and long service life.