Vishay General Semiconductor - Diodes Division, TransZorb® series, TVS Zener diode, 1.5SMC300A-M3/57T, 1500W peak pulse power, 256V reverse standoff, 414V clamping, DO-214AB (SMC) surface mount.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5SMC, TransZorb® |
| Mounting | Surface Mount |
| Voltage - breakdown | 285V |
| Voltage - clamping (Max) @ ipp | 414V |
| Voltage - reverse standoff | 256V |
| Current - peak pulse (10/1000μs) | 3.6A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR) |
| Applications | General Purpose |
| Case | DO-214AB, SMC |
| Unidirectional channels | 1 |
The 1.5SMC300A-M3/57T: The 256V standoff voltage means it stays transparent below that threshold — no leakage-induced bias shift on the protected rail.
The tape-and-reel packaging (M3/57T suffix) indicates a 7-inch reel quantity — typical for pick-and-place assembly lines that run medium-volume batches.
Listed as Active with no NRND or EOL flags.