Vishay General Semiconductor, Automotive AEC-Q101 1.5SMC TransZorb® series, Zener TVS diode, 1.5SMC300AHE3_AIH, 1500W peak pulse, 256V standoff, 414V clamp, DO-214AB SMC package, surface mount.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | Automotive, AEC-Q101, 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 | Automotive |
| Case | DO-214AB, SMC |
| Unidirectional channels | 1 |
The 1.5SMC300AHE3_AIH: The 256 V standoff voltage suits it for protecting 24 V nominal automotive systems against load-dump and inductive-load switching transients, where the bus can ride up to the standoff level without the diode conducting leakage current.
No power line protection is built in — this is a transient suppressor, not a crowbar or a filter.
It is AEC-Q101 qualified, which means it has passed the stress tests and reliability screening required for automotive-grade discrete semiconductors, including temperature cycling, high-temperature reverse bias, and ESD robustness.