Diodes Incorporated SMAJ12CA-13-F TVS Zener diode, bidirectional, 400W peak pulse power, 12V reverse standoff, 19.9V clamping, DO-214AC SMA package, Tape & Reel.
| Parameter | Value |
|---|---|
| Type | Zener |
| Mounting | Surface Mount |
| Voltage - breakdown | 13.3V |
| Voltage - clamping (Max) @ ipp | 19.9V |
| Voltage - reverse standoff | 12V |
| Current - peak pulse (10/1000μs) | 20.1A |
| 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 |
| Bidirectional channels | 1 |
The SMAJ12CA-13-F: Housed in the DO-214AC (SMA) surface-mount package, it occupies the standard SOD-123F-equivalent footprint with a low profile suited for dense PCB layouts where board space is a constraint. The breakdown voltage starts at 13.3 V, meaning the device begins conducting just above the 12 V reverse standoff, clamping transients before they exceed the downstream IC's abs-max rating.
Rated 400 W for the 10/1000 µs waveform. This means a single surge of 20.1 A peak current gets clamped to 19.9 V; the energy dissipated is 400 W for that pulse width, covering most ESD and lightning-induced transients on a 12 V rail.
The part is listed as a standard general-purpose device. RoHS and REACH compliance documentation is typically available from the manufacturer's website for the SMAJ12CA series.