Active automotive Zener — AEC-Q101, 375 W peak pulse
The D5V0H1B2LPQ-7B is an active-production, AEC-Q101-qualified Zener TVS from Diodes Incorporated, built for automotive and high-reliability applications that demand a compact, single-channel bidirectional clamp. Rated for 375 W peak pulse power (8/20 µs waveform) and 25 A peak pulse current, it clamps transients at 15 V max from a 5.5 V reverse standoff — the 6 V minimum breakdown ensures the device stays off the rail under normal 5 V operation.
375 W peak pulse, 85 pF — what the ratings mean for the BOM
The 375 W peak pulse rating at 8/20 µs means this part absorbs short-duration surges typical of ESD and load-dump events in automotive 12 V and 5 V rails — enough to protect a CAN transceiver or sensor supply without needing a larger-footprint device. Capacitance of 85 pF at 1 MHz keeps signal integrity intact on high-speed data lines (CAN, LIN, or low-speed sensor buses) — the added capacitive load stays below the threshold that would distort edge rates on most automotive interfaces. The -65°C to 150°C junction temperature range covers the full under-hood ambient, with margin for self-heating during repetitive surge events — a key spec for engine-bay or transmission-control modules that see 125°C ambient plus transient injection.
0402 / X1-DFN1006-2 — board-fit and sourcing posture
Housed in the 0402 (1006 metric) X1-DFN1006-2 package, this TVS shares the same land pattern as standard 0402 ceramic capacitors — no special footprint changes needed for a drop-in replacement on existing automotive PCB layouts.