AEC-Q101 — what the automotive grade certifies
The operating junction temperature range is -55°C to 175°C, covering under-hood and engine-bay thermal profiles. For a buyer cross-referencing a non-automotive TVS into a vehicle program, the AEC-Q101 stamp is the gate — without it, the part does not meet PPAP requirements for Tier-1 production. The 1.5KE170AHE3_B/C carries that stamp, so it slots into an automotive BOM without a qualification waiver.
Clamping voltage and pulse current — the real protection envelope
At the rated 1500 W peak pulse, the clamping voltage holds at 234 V maximum when the device is conducting 6.7 A (10/1000 µs waveform). The reverse standoff of 145 V means the TVS stays off below that DC rail voltage, so it does not leak on a nominal 120-130 V bus. The base product number is 1.5KE170, confirming the voltage family.
Sourcing and traceability
As an Active Vishay part, the 1.5KE170AHE3_B/C is available through authorized distribution channels. The tape-and-reel packaging is standard for automated insertion; the reel quantity and lead time are confirmed at RFQ.