Vishay General Semiconductor TransZorb® TVS diode, Type Zener, 1.5KE9.1A-/54, 1500W peak pulse, 7.78V standoff, 13.4V clamp, DO-201AA axial, Through Hole.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | TransZorb® |
| Mounting | Through Hole |
| Voltage - breakdown | 8.65V |
| Voltage - clamping (Max) @ ipp | 13.4V |
| Voltage - reverse standoff | 7.78V |
| Current - peak pulse (10/1000μs) | 112A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C~175°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Applications | General Purpose |
| Case | DO-201AA, DO-27, Axial |
| Unidirectional channels | 1 |
The 1.5KE9.1A-E3/54: Its 8.65 V minimum breakdown ensures the device stays off during normal operation while the 13.4 V clamp at 112 A (10/1000 µs) limits the voltage spike the downstream circuitry sees.
The -55°C to 175°C operating range means the derating curve starts well above typical ambient — at 25°C you get the full 1500 W, but at 125°C the power drops to roughly 75% of the headline figure.