Dual Schottky in one D²Pak — BOM consolidation for automotive 12-V rails
The RBQ20NS100ATL packs two 100 V, 20 A Schottky diodes in a common-cathode pair, housed in a TO-263S (D²Pak) surface-mount package — one component replaces two discrete rectifiers sharing a ground return, saving board space and pick-and-place cost on a 12-V automotive power rail. Each diode is rated for 20 A average rectified current with a maximum forward voltage drop of 770 mV at 10 A, and reverse leakage stays at 140 µA at the 100 V DC reverse rating — a low-Vf/low-Ir trade-off that suits OR-ing, reverse-polarity protection, and freewheeling in engine-bay DC-DC stages.
AEC-Q101 Grade — what it means for the design
Qualified to AEC-Q101, the RBQ20NS100ATL is built for the automotive temperature range with a 150 °C maximum junction temperature — the Schottky barrier and die attach are screened for the thermal cycling, high-temperature reverse bias, and humidity stress that an under-hood or transmission-mounted module sees. Fast recovery is specified at ≤ 500 ns at > 200 mA — fast enough for hard-switching converters in the 50–200 kHz band common to automotive boost and flyback stages.
ROHM Semiconductor lists this part as Active in the current production portfolio, with ROHS3 compliance. No last-time-buy or successor notice is published — it remains a current BOM line for new and service designs alike.