1500W surge clamp for 185V automotive rails
The 1.5KE220CAHB0G: It clamps transients at 328V maximum while conducting 4.8A peak pulse current, protecting a 185V reverse standoff rail from both positive and negative overvoltage events.
Clamping voltage and standoff margin
With a 185V reverse standoff voltage and 209V minimum breakdown, the diode stays transparent during normal operation — no leakage current until the rail exceeds 209V. The 328V clamping ceiling means a 24V or 48V automotive bus with 185V-rated downstream components sees the transient clipped before dielectric breakdown. The single bidirectional channel handles both positive and negative surges on one line, saving a diode and PCB space compared to two unidirectional devices in anti-series. The 1500W peak pulse rating at 10/1000µs covers the typical automotive load-dump pulse per ISO 7637-2 pulse 5a/5b.
Through-hole DO-201 package and thermal range
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE220CAHB0G mounts through-hole — the lead frame conducts surge current directly into the PCB copper pour, which acts as the heatsink. Bulk packaging means the parts ship in tubes or trays, not tape-and-reel — typical for through-hole TVS diodes ordered for manual or wave-solder assembly.
Active production and sourcing posture
The AEC-Q101 documentation and RoHS compliance data are provided with the shipment.