Integrated Diode: Each relay includes a built-in diode that suppresses induced voltage during switching, safeguarding your electrical components from potential damage. Rated operational voltage: 12V/ Switching Capability:40A Minimum operating voltage 8V, corresponding minimum operating current is 100mA; Standard operating voltage 12V, corresponding standard operating current is 150mA. Small size/Low power consumption/High contact voltage/ High sensitivity Contact Material: Ag Alloy / Contact Resistance: ≤ 100MΩ. Life Expectancy Electrical: 100,000 Operations, Life Expectancy Mechanical: 10,000,000 Operations, Manufacturer: Gebildet