Automotive-grade transient suppression at 1500W
The 1.5SMC22CA-AU_R1_000A1: This is the part that clamps a 22V nominal rail — the reverse standoff voltage is 18.8V, breakdown triggers at 20.9V min, and clamping max is 30.6V at the 49A peak pulse current. The qualification covers the reliability stress and PPAP requirements for under-hood and cabin electronics — an ECU, sensor module, or body controller seeing 105°C ambient still has margin to the 150°C TJ limit.
The lifecycle status is Active — Panjit continues to manufacture this order code. For a BOM cost engineer, the single-source risk here is low: the 1.5SMC-AU series is a standard automotive TVS footprint (DO-214AB) with multiple second-source equivalents from other manufacturers. The AEC-Q101 qualification is the gate — any pin-compatible replacement must carry the same automotive grade to avoid a PPAP delta.