Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC480A, 1500W peak pulse power, 408V reverse standoff, 456V breakdown, 658V clamping, DO-214AB SMC surface mount.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC |
| Mounting | Surface Mount |
| Voltage - breakdown | 456V |
| Voltage - clamping (Max) @ ipp | 658V |
| Voltage - reverse standoff | 408V |
| Current - peak pulse (10/1000μs) | 2.3A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Applications | General Purpose |
| Case | DO-214AB, SMC |
| Unidirectional channels | 1 |
The 1.5SMC480A: The SMC footprint is larger than the smaller SMA/SMB siblings, giving better heat sinking for the 1500 W pulse rating — the copper pad area under the cathode tab directly sets the thermal impedance during the transient. The device does not include power line protection circuitry — it is a standalone transient suppressor for signal or DC power rails.
It is supplied in the DO-214AB (SMC) surface-mount package, also designated as SMCJ. The package supports the 1500 W peak pulse power rating through its larger body and cathode tab area compared to smaller SMB/SMA packages.