1500W surge clamp for 43.6V automotive rails
The 1.5KE51AHE3_A/C is a 1500W unidirectional TVS Zener diode from Vishay's TransZorb® series, qualified to AEC-Q101 for automotive use. Its 43.6V reverse standoff voltage protects 48V nominal rails, with a breakdown range of 48.5V min and a clamping ceiling of 70.1V at the 21.4A peak pulse current (10/1000µs waveform).
DO-201AA axial package for through-hole assembly
The DO-201AA (DO-27) axial leaded package mounts through-hole, which suits high-reliability board attachment in power distribution and ECU modules. The package body handles the 1500W pulse without cracking, and the axial leads carry the surge current with low inductance.