Littelfuse Inc.
Littelfuse Inc. 1.5SMC series Zener TVS diode, order code 1.5SMC43A, 1500W peak pulse power, 36.8V reverse standoff, DO-214AB SMC surface mount package.
MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T
| Parameter / Attribute | Specification / Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC |
| Mounting | Surface Mount |
| Voltage - breakdown | 40.9V |
| Voltage - clamping (Max) @ ipp | 59.3V |
| Voltage - reverse standoff | 36.8V |
| Current - peak pulse (10/1000μs) | 25.6A |
| 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 1.5SMC43A: The 1500 W rating at the 10/1000 µs pulse defines the energy-handling capability for surge events — a key parameter when sizing protection for a 24 V or 36 V DC bus against inductive load dumps or lightning-induced transients.
The SMC footprint is larger than the SMA/SMB siblings, providing better thermal dissipation for the 1500 W pulse rating — a consideration for the PCB copper area under the cathode tab.
