Each diode is rated for 20 A average rectified current (Io) with a maximum DC reverse voltage of 100 V. Forward voltage is specified at 670 mV at 20 A, keeping conduction losses manageable in high-current rectification or OR-ing applications. The part carries AEC-Q101 automotive qualification, making it suitable for under-hood power supplies, alternator rectification, and DC-DC converter output stages where reliability screening and temperature range matter.
175°C junction — thermal headroom for tight enclosures
Operating junction temperature spans -40°C to 175°C, which is the extended automotive grade. In a sealed ECU or motor-drive compartment where ambient can reach 105°C, the 175°C Tj max provides derating margin for the 20 A load. The TO-220 tab is the primary heat path; a proper heatsink or chassis mount is expected for sustained current near the rating.
Fast recovery characteristic — switching loss context
Listed as a fast recovery diode with trr ≤ 500 ns at >200 mA. For a Schottky, this is a conservative recovery spec — the Schottky barrier inherently has minimal stored charge, so switching losses are low even without a fast-recovery label. The 500 ns bound is a datasheet guarantee for the inductive-switching case; in practice the part behaves as a majority-carrier device with negligible reverse recovery.