The 1.5SMC22CH: With a 17.8 V reverse standoff voltage and a clamping ceiling of 31.9 V at 49 A peak pulse current, it protects 12 V and 15 V rails in telecom and automotive electronics against transients up to that energy level.

1.5SMC22CH Taiwan Semiconductor TVS, 1500W, DO-214AB
MPN1.5SMC22CH
Active
Taiwan Semiconductor Corporation 1.5SMC series bidirectional TVS diode, 1.5SMC22CH, Zener type, 1500W peak pulse power, 17.8V reverse standoff, DO-214AB (SMC) surface-mount package, AEC-Q101 qualified.
$0.2184Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC |
| Mounting | Surface Mount |
| Voltage - breakdown | 19.8V |
| Voltage - clamping (Max) @ ipp | 31.9V |
| Voltage - reverse standoff | 17.8V |
| Current - peak pulse (10/1000μs) | 49A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Grade | Automotive |
| Package | Tape & Reel (TR) |
| Applications | Telecom |
| Qualification | AEC-Q101 |
| Case | DO-214AB, SMC |
| Bidirectional channels | 1 |