Taiwan Semiconductor 1.5KE series Zener TVS diode, 1.5KE51A A0G, 1500W peak pulse power, 70.1V clamping voltage, 43.6V standoff, DO-201AA axial through-hole package.
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 1.5KE |
| Mounting | Through Hole |
| Voltage - breakdown | 48.5V |
| Voltage - clamping (Max) @ ipp | 70.1V |
| Voltage - reverse standoff | 43.6V |
| Current - peak pulse (10/1000μs) | 22A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C ~ 175°C (TJ) |
| Package | Tape & Box (TB) |
| Applications | General Purpose |
| Case | DO-201AA, DO-27, Axial |
| Unidirectional channels | 1 |
The 1.5KE51A A0G: Its 70.1V clamping voltage at 22A (10/1000µs waveform) means a 48V nominal bus sees protection below the typical 60V absolute maximum of downstream DC-DC converters.
No power line protection feature is included — this is a dedicated transient suppressor, not a crowbar or polyfuse replacement.