STMicroelectronics SM15T200A, TRANSIL™ series, Zener TVS diode, 1500W peak pulse power, 171V reverse standoff, 353V clamping, 28A peak pulse current, DO-214AB SMC package, surface mount, -55°C to 150°C.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | SM15T, TRANSIL™ |
| Mounting | Surface Mount |
| Voltage - breakdown | 190V |
| Voltage - clamping (Max) @ ipp | 353V |
| Voltage - reverse standoff | 171V |
| Current - peak pulse (10/1000μs) | 28A (8/20µs) |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C~150°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Applications | General Purpose |
| Case | DO-214AB, SMC |
| Unidirectional channels | 1 |
Its 1500W peak pulse power rating (1.5kW) handles substantial surge energy, while the 171V reverse standoff voltage means it sits across a 170V nominal rail without conducting.
The 353V clamping maximum at 28A peak pulse current defines the voltage downstream components see during a surge. For a 170V rail, a TVS clamping at 353V leaves headroom for components rated at 400V or higher.
The SM15T200A is a unidirectional device with one channel. The SM15T series includes bidirectional variants for AC or differential-line protection, but this specific order code is single-direction only.