Rad hard, 100 V, 52 A, GaN transistor bare die IR HiRel rad hard GaN transistor technology provides high performance power devices for space applications. These devices have been characterized for both Total Ionizing Dose (TID) and Single Event Effects (SEE). This device, IG1C052N10RCDK, is in a bare die package and has a level K screening level per MIL-PRF-19500.