REL34021 is a high-power, surface-mount, shielded power relay from TE Connectivity. It is designed for application in medical devices, computers, and other consumer electronics, as well as for general home and commercial electrical switching control. This high-power relay has a wide range of coil voltage options, including 12V, 24V, and 48V DC. Its contacts are rated for switching up to 40A and its UL-rated maximum surge rating is 120A. It also provides isolation from high voltage and capacitive canonic suppression.