Diodes Incorporated SMAJ45A-13-F Zener TVS diode, 45V reverse standoff, 72.7V clamp, 400W peak pulse, DO-214AC (SMA), Tape & Reel.
| Parameter | Value |
|---|---|
| Type | Zener |
| Mounting | Surface Mount |
| Voltage - breakdown | 50V |
| Voltage - clamping (Max) @ ipp | 72.7V |
| Voltage - reverse standoff | 45V |
| Current - peak pulse (10/1000μs) | 5.5A |
| Power - peak pulse | 400W |
| Power line protection | No |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Applications | General Purpose |
| Case | DO-214AC, SMA |
| Unidirectional channels | 1 |
The SMAJ45A-13-F: Its 72.7V clamping voltage at the 5.5A peak pulse current (10/1000µs waveform) means a 48V bus or a 45V regulated supply sees the spike clipped before it reaches downstream silicon — the 400W peak pulse power handles surges from inductive load dumps or hot-plug events on a general-purpose board.