The RDHA710SE10A2QK is a radiation hardened dual solid-state relay in a hermetic package. It is configured as a dual, single-pole-single-throw (SPST) normally open relay with common input supply. This device is characterized for 100 krad(Si) total ionizing dose. The input and output MOSFETs utilize International Rectifier's R5 technology. The RDHA710SE10A2QK is optically coupled and actuated by standard logic inputs.