Sensata Technologies D4825-10 Relay

The Sensata Technologies D4825-10 is a 25 A solid-state relay (AC-output) designed for high-current loads in industrial controls, offering a load voltage range of 48–530 VAC and a 25 A continuous rating. This panel-mount device uses screw-terminal connections on input and load sides and weighs about 2.6 oz (74.9 g); its baseplate is aluminum and the housing is UL 94 V-0 rated for durability in harsh environments. Key electrical specifications include 4000 Vrms dielectric strength between input and output, insulation resistance of 10^9 Ω at 500 VDC, and input-output capacitance up to 8 pF; the unit supports 4–32 VDC control voltage and is designed to be EMC compliant at Level 3. The D4825-10 is accompanied by safety approvals: UL/CSA/TUV listed and CE compliant under EN60950-1, with an epoxy-free construction and a redesigned housing featuring anti-rotation barriers and improved SEMS screw and washer details for robust mounting. Environmental and operating conditions are broad, with an operating temperature range of -40 to 80 °C and storage from -40 to 125 °C, humidity up to 93% non-condensing. Connectors use #6-32 UNC inputs and #8-32 UNC load terminals, and torque values for the input, load, and mounting screws fall in the 13–15 in-lb, 18–20 in-lb, and 18–20 in-lb ranges respectively. The unit's longevity is underscored by an MTBF of 11,641,553 hours (1,328 years) at 40 °C ambient and 7,210,376 hours (823 years) at 60 °C ambient. Typical applications include industrial control panels, HVAC/heating and motor control, and other high-current switching tasks where solid-state reliability and fast switching are advantageous.