75V rail protection, 600W surge rating
The SMBJ75A-13 is a Zener TVS diode from Diodes Incorporated, part of the SMBJ series, designed to clamp overvoltage transients on a 75V nominal rail. Its 75V reverse standoff voltage means it sits across the supply without conducting until a surge exceeds that threshold.
Package and board-fit
The footprint is standard for this power class — the 600W rating is achievable with the copper pad area recommended in the datasheet layout note. The unidirectional single-channel configuration protects one rail; for bipolar or AC lines, two devices back-to-back or a bidirectional variant is needed.
Listed as Active by Diodes Incorporated — no end-of-life notice, no last-time-buy window. This is a current-production part available through franchised and independent distribution channels. For volume BOM positions, pricing and lead time are confirmed at RFQ against the specific quantity and delivery window.