STMicroelectronics SM30T15CAY bidirectional Zener TVS diode, 3000W peak pulse power, 13V reverse standoff, 21.5V clamping, AEC-Q101 qualified, DO-214AB SMC package.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | * |
| Mounting | Surface Mount |
| Voltage - breakdown | 14.3V |
| Voltage - clamping (Max) @ ipp | 21.5V |
| Voltage - reverse standoff | 13V |
| Current - peak pulse (10/1000μs) | 140A |
| Power - peak pulse | 3000W (3kW) |
| Power line protection | No |
| Operating temperature | -55°C ~ 175°C (TJ) |
| Grade | Automotive |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Qualification | AEC-Q101 |
| Case | DO-214AB, SMC |
| Bidirectional channels | 1 |
It clamps transients at 21.5 V maximum while standing off 13 V DC continuously, and can handle 140 A of peak pulse current. This is a protection diode you'd specify on a 12 V automotive power bus, an industrial sensor line, or any DC rail where bidirectional clamping is needed and the board sees under-hood or engine-bay temperatures.
It is a single-channel bidirectional Zener TVS diode, clamping both positive and negative transients symmetrically.
Yes, the SM30T15CAY is AEC-Q101 qualified, making it suitable for automotive-grade applications including under-hood and engine-bay environments.