US3xC-HF Ultra Fast Recovery Rectifiers Comchip Technology US3xC-HF Ultra Fast Recovery Rectifiers feature a reverse voltage range of 50V to 1000V, a 3A forward current, and a maximum recovery time of 50ns to 75ns. These glass-passivated devices are offered in compact, low-profile, surface mounted, SMC/DO-214AB packages, well suited for automated assembly.