Active production, AEC-Q101 qualified — what the ratings mean for your BOM
The 1.5KE150CAHE3_A/D is an active-production TransZorb TVS diode from Vishay, part of the Automotive series with AEC-Q101 qualification — meaning it meets the automotive-grade reliability and temperature stress screening required for under-hood and chassis-domain electronics.
Package and rework — DO-201AA axial through-hole
Housed in a DO-201AA (DO-27) axial leaded package, this part is through-hole mounted — the leads are robust enough for hand-soldering or wave-solder, and the body orientation is unambiguous, so rework under a hot-air station is straightforward as long as you preheat the board to avoid thermal shock to the die. The operating temperature range spans -55°C to +175°C, covering the full automotive temperature envelope with margin for engine-bay heat soak.
Sourcing and compliance
AEC-Q101 qualification is the key authority signal: it certifies the device for automotive use with documented reliability testing (temperature cycling, HTRB, ESD) and PPAP-level traceability.