The SMCJ28A-13: The minimum breakdown voltage is 31.1V, so the device starts clamping before the rail exceeds the 24V + tolerance window. Power line protection is not specified (the device is intended for signal and low-power supply rails, not mains AC).
SMCJ28A-13 Diodes Inc TVS, 28V Standoff, 45.4V Clamp
MPNSMCJ28A-13
End of Life
Diodes Incorporated SMCJ28A-13 TVS Zener, 1500W peak pulse power, 28V reverse standoff, 45.4V clamping, unidirectional, DO-214AB SMC package, Tape & Reel.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Zener |
| Mounting | Surface Mount |
| Voltage - breakdown | 31.1V |
| Voltage - clamping (Max) @ ipp | 45.4V |
| Voltage - reverse standoff | 28V |
| Current - peak pulse (10/1000μs) | 33A |
| 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 |