onsemi SMBJ series Zener TVS diode, SMBJ12AONT3G, unidirectional, 12V reverse standoff, 13.2V min breakdown, 19.9V max clamping, 600W peak pulse power, DO-214AA SMB package
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | SMBJ |
| Mounting | Surface Mount |
| Voltage - breakdown | 13.2V |
| Voltage - clamping (Max) @ ipp | 19.9V |
| Voltage - reverse standoff | 12V |
| Current - peak pulse (10/1000μs) | 30.2A (8/20µs) |
| Power - peak pulse | 600W |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Applications | General Purpose |
| Case | DO-214AA, SMB |
| Unidirectional channels | 1 |
Minimum breakdown voltage is 13.2V, ensuring the TVS starts conducting before the protected rail reaches damaging levels. Maximum clamping voltage at Ipp is 19.9V — downstream components must survive this peak during a 600W, 10/1000µs surge.
Surface-mount SMB package, with the cathode identified by a band. The supplier device package is SMB.
Yes, onsemi lists this part as Obsolete. It is no longer in production. Sourcing is through independent surplus channels; quantities are confirmed at RFQ.