Automotive-grade transient suppression, 1500 W axial
The 1.5KE8.2AHE3_A/D is a Vishay TransZorb® TVS diode in the 1.5KE series, designed to clamp transients on 7.02 V nominal rails in automotive electronics.
AEC-Q101 qualification and temperature grade
This part carries full AEC-Q101 automotive qualification — the discrete semiconductor equivalent of AEC-Q100 for ICs — meaning it has passed the prescribed reliability stress tests (HTRB, H3TRB, temperature cycling, ESD) and supports PPAP documentation for OEM submissions. The operating junction temperature range spans -55°C to +175°C, covering the under-hood ambient with margin. The 175°C Tj max is the ceiling for the die attach and molding compound; derate the peak pulse power above 25°C per the datasheet curve.
Clamping performance and breakdown window
Reverse standoff voltage is 7.02 V typical — the rail voltage below which the diode draws negligible leakage. The unidirectional Zener construction (single channel) is intended for DC rails with a known polarity; reverse insertion will forward-bias the diode and short the supply. Verify the circuit's polarity before specifying.
Package and mounting — DO-201AA axial
Supplied in the DO-201AA (DO-27) axial-lead package, through-hole mounted. The 1.5KE body diameter and lead spacing are standard across the 1.5KE family, so the PCB footprint is shared with other 1.5KE voltage variants. Tape & Box (TB) packaging is the listed format.