Automotive-grade TVS for 53V rail protection
The 1.5KE62AHA0G: The breakdown voltage range starts at 58.9V minimum, and clamping is held to 85V at the 18A peak pulse current (10/1000µs waveform). That 85V clamp ceiling is what the downstream silicon sees — a 60V-rated buck converter or a 75V-rated MOSFET has margin.
Package and thermal envelope
Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE62AHA0G mounts through-hole — the leads handle the pulse current without the trace lift risk of a surface-mount TVS on a thin copper pour. The junction temperature range spans -55°C to 175°C, covering the full automotive ambient plus self-heating from repetitive surges. It is a unidirectional device (single-channel Zener), so it clamps positive transients above the breakdown voltage and conducts forward like a diode on negative spikes. Power line protection is not listed — this is a signal or low-power rail protector, not a mains-side suppressor.
This part is sourced to order against BOM quantities.