1500 W peak pulse, AEC-Q101 qualified
The 1.5KE8.2AHE3_B/C is a 1500 W peak pulse power Zener TVS diode from Vishay's TransZorb series, rated for a 7 V reverse standoff voltage and clamping at 12.1 V with a 130 A peak pulse current (10/1000 µs waveform).
Clamping voltage and standoff margin
The 7 V reverse standoff voltage means the diode does not conduct at the nominal 5 V or 12 V rails it protects; the 7.79 V minimum breakdown voltage provides a guard band before the avalanche region activates. Clamping at 12.1 V limits the voltage seen by the downstream IC below the typical 15 V abs-max of a 12 V-rated automotive ECU input — the 130 A peak pulse current handles a direct battery-line surge without exceeding the junction temperature limit.
Package and board integration
Supplied in a DO-201AA (DO-27) axial-lead package with through-hole mounting — the lead bend and body length match the standard 0.400-inch lead spacing used on automotive ECU power-entry boards. The Tape & Reel packaging supports automated insertion for high-volume assembly; the 1.5KE supplier device package is the same footprint as other 1.5KE-series parts, so a single PCB pad layout serves multiple voltage variants.