Microchip Technology SMAJ45CE3/TR13, Zener TVS diode, 500W peak pulse power, 45V reverse standoff, bidirectional, DO-214AC (SMA) package, Tape & Reel, Active
| Parameter | Value |
|---|---|
| Type | Zener |
| Mounting | Surface Mount |
| Voltage - breakdown | 50V |
| Voltage - clamping (Max) @ ipp | 80.3V |
| Voltage - reverse standoff | 45V |
| Current - peak pulse (10/1000μs) | 6.2A |
| Power - peak pulse | 500W |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR) |
| Applications | General Purpose |
| Case | DO-214AC, SMA |
| Bidirectional channels | 1 |
It delivers 500W peak pulse power per the 10/1000µs waveform, with a clamping voltage of 80.3V at the peak pulse current of 6.2A.
The breakdown voltage minimum is 50V, giving a 5V margin above the 45V standoff before the diode starts conducting.
Yes, it has one bidirectional channel, clamping both polarities symmetrically.
The SMAJ45A is a unidirectional version of the same 500W, 45V standoff TVS in the same DO-214AC package. The key difference is polarity: SMAJ45CE3/TR13 is bidirectional, while SMAJ45A clamps only one polarity. Pin-compatible in footprint, but the circuit must account for the polarity difference.