Littelfuse 1.5SMC series bidirectional TVS diode, 1.5SMC39C, 1500W peak pulse power, 33.3V standoff, 56.6V clamp, DO-214AB SMC package, Tape & Reel.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC |
| Mounting | Surface Mount |
| Voltage - breakdown | 35.15V |
| Voltage - clamping (Max) @ ipp | 56.6V |
| Voltage - reverse standoff | 33.3V |
| Current - peak pulse (10/1000μs) | 28.2A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C~150°C(TJ) |
| Package | Tape & Reel (TR) |
| Applications | General Purpose |
| Case | DO-214AB, SMC |
| Bidirectional channels | 1 |
The 1.5SMC39C: Tape & Reel packaging suits automated pick-and-place assembly for volume production.
That eliminates the need for two back-to-back unidirectional devices on AC signal lines or on DC rails that see reverse-voltage events. The 33.3 V reverse standoff voltage sets the maximum continuous DC or peak AC voltage the protected line can carry without the TVS conducting leakage current.
No official pin-compatible successor is recorded for the 1.5SMC39C. The 1.5SMC series shares the same DO-214AB footprint, so a different voltage rating within the same series (e.g., 1.5SMC36C or 1.5SMC43C) will fit the same PCB land pattern but shifts the clamping threshold. A full parametric cross-reference against the original design's rail voltage and transient energy is recommended before substitution.