Vishay General Semiconductor, TransZorb® Automotive series, TVS diode, Type Zener, 1.5KE170AHE3/51, 1500W peak pulse, 145V standoff, DO-201AA axial.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | Automotive, AEC-Q101, TransZorb® |
| Mounting | Through Hole |
| Voltage - breakdown | 162V |
| Voltage - clamping (Max) @ ipp | 234V |
| Voltage - reverse standoff | 145V |
| Current - peak pulse (10/1000μs) | 6.4A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C~175°C(TJ) |
| Package | Bulk |
| Applications | Automotive |
| Case | DO-201AA, DO-27, Axial |
| Unidirectional channels | 1 |
The 1.5KE170AHE3/51 is a 1500W unidirectional TVS diode from Vishay's automotive-grade TransZorb series, clamping transients at 234V maximum when hit with a 6.4A peak pulse (10/1000µs waveform). Its 145V reverse standoff voltage means it sits across a 120V or 130V nominal rail and stays out of the way until a surge pushes the line above 162V breakdown, then it clamps hard.
It is a 1500W unidirectional TVS diode that clamps voltage transients on a 145V DC rail. Typical use is automotive electronics — engine control units, transmission controllers, or any 12V/24V system where a 1500W pulse absorber is needed across the DC bus.