Microchip Technology SMAJ22CE3/TR13, Zener TVS diode, 500W peak pulse power, 22V reverse standoff, bidirectional, single channel, DO-214AC (SMA) surface-mount package.
| Parameter | Value |
|---|---|
| Type | Zener |
| Mounting | Surface Mount |
| Voltage - breakdown | 24.4V |
| Voltage - clamping (Max) @ ipp | 39.4V |
| Voltage - reverse standoff | 22V |
| Current - peak pulse (10/1000μs) | 12.7A |
| 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 |
The SMAJ22CE3/TR13: That 500W rating means it can absorb a 12.7A peak pulse current without failing — enough to protect a 24V DC supply rail or a 22V signal line from industrial surge events. The breakdown voltage starts at 24.4V, and the clamping voltage is held to 39.4V at the peak pulse current. For a 22V rail, that clamp margin leaves headroom for the downstream regulator or load switch.
Microchip lists the SMAJ22CE3/TR13 as Active.
Yes — it has one bidirectional channel, meaning it clamps both positive and negative transients symmetrically. No need to series two unidirectional parts.
500W peak pulse power measured with a 10/1000µs waveform, corresponding to a peak pulse current of 12.7A.
Surface-mount DO-214AC (SMA) package, supplied on Tape & Reel (TR). The supplier device package is also DO-214AC (SMA).