Microchip Technology SMBJ170CAE3/TR13, bidirectional Zener TVS diode, 600W peak pulse power, 170V reverse standoff, 189V breakdown, 275V clamping, DO-214AA SMB package, -65°C to 150°C junction temperature range.
| Parameter | Value |
|---|---|
| Type | Zener |
| Mounting | Surface Mount |
| Voltage - breakdown | 189V |
| Voltage - clamping (Max) @ ipp | 275V |
| Voltage - reverse standoff | 170V |
| Current - peak pulse (10/1000μs) | 2.2A |
| Power - peak pulse | 600W |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR) |
| Applications | General Purpose |
| Case | DO-214AA, SMB |
| Bidirectional channels | 1 |
This part is designed for general-purpose overvoltage protection on a 170V nominal rail — the 275V clamp means downstream components must survive that peak during a transient event.
The DO-214AA (SMB) package is surface-mount with a 0.50 mm pin pitch typical of this family; the SMBJ (DO-214AA) supplier device package matches the standard footprint for SMB diodes.
600W peak pulse power measured with a 10/1000µs waveform. This is the maximum power the device can absorb in a single transient event without failing — enough for typical industrial surge protection on a 170V rail.
Yes. The reverse standoff voltage is 170V, so the rail can run at 170V DC continuously without the diode conducting. The breakdown voltage starts at 189V, and clamping happens at 275V maximum — the protected circuit must survive that peak clamp voltage.
The base product number SMBJ170 covers both; the CAE3 suffix indicates the bidirectional (CA) version with the screening level. The SMBJ170CA (without) is the same electrical part but may have different testing or temperature range. Pin-to-pin compatible in the same DO-214AA footprint.