1500W surge clamp for 40V automotive rails
The 1.5SMC47AHR7G: It clamps transients on a 40.2V nominal rail — the reverse standoff voltage — and triggers breakdown at 44.7V minimum, holding the clamp at 64.8V maximum while shunting 24A peak pulse current. This is the part to reach for when a 12V or 24V automotive bus sees load-dump or inductive kickback spikes that exceed the ECU's input-stage voltage tolerance.
AEC-Q101 — what the automotive grade buys you
AEC-Q101 qualification means this diode passed the Automotive Electronics Council's stress tests for discrete semiconductors: temperature cycling, high-temperature reverse bias, humidity bias, and ESD robustness. The production status is Active per the manufacturer — no end-of-life notice, no last-time-buy window.
Package and board-fit — DO-214AB (SMC)
The DO-214AB (SMC) package is the standard surface-mount footprint for 1500W TVS diodes. For a 1500W pulse, the junction temperature rise is proportional to the pulse duration; the 10/1000µs waveform is the test condition, but real-world transients are often shorter, so the derating curve in the datasheet is the safe guide for repetitive events. Supplied in Tape & Reel packaging, it feeds directly into a pick-and-place line. No MSL floor-life concern for a standard glass-passivated junction — the package is moisture-resistant by construction, not by a moisture-sensitive label.