Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb®, TVS Zener Diode, 1.5KE39CHE3/73, 1500W, 31.6V Standoff, 56.4V Clamp, DO-201AA Axial, Through Hole.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | Automotive, AEC-Q101, TransZorb® |
| Mounting | Through Hole |
| Voltage - breakdown | 35.1V |
| Voltage - clamping (Max) @ ipp | 56.4V |
| Voltage - reverse standoff | 31.6V |
| Current - peak pulse (10/1000μs) | 26.6A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C~175°C(TJ) |
| Package | Tape & Box (TB) |
| Applications | Automotive |
| Case | DO-201AA, DO-27, Axial |
| Bidirectional channels | 1 |
The 1.5KE39CHE3/73: With a 31.6 V standoff, the diode stays out of conduction below the normal operating rail, then clamps transients to 56.4 V maximum — a margin that protects downstream 40 V-rated components in a 24 V automotive system. The 26.6 A peak pulse current rating (10/1000 µs) at the clamp voltage means the device can absorb a single 1.5 kW surge without exceeding the junction temperature limit of 175 °C.
No official pin-compatible successor is listed by Vishay.