The single-contact, single-pole DC radiation-resistant SSR (part number RDHA701CD10A2N) is designed to improve reliability by replacing traditional electromechanical relays, which are vulnerable to vibration and shock. The new SSR features low on-resistance (RDS(on)) for improved thermal efficiency and is supplied in a low-profile, hermetically sealed, 8-terminal ceramic package. Weighing only 0.8 g, this surface-mount device requires a board footprint of just 0.37 in (0.94 cm) by 0.47 in (1.19 cm).


IR's RDHA701CD10A2N SSR improves reliability, reduces footprint and eliminates the need for added filtering, making it an attractive replacement for less reliable and heavier electromechanical relays.


This new 100 V device features total dose levels up to 100 krad (Si). The RDHA701CD10A2N is a dual-channel device rated at 100 V and 1 A with 1000 V between input and output and isolation between channels. Approval to MIL-PRF-38534 Class “K” for space environments is complete, and DLA approval is pending to ensure full compliance.

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