AC-side transients are nastier than DC ones because the polarity flips and your protection has to keep up both ways. The P4KE 12.8V Zener diode handles 15A standoff at 400W AC peak, with low Zener impedance so the clamp engages fast on either half-cycle. 1W steady-state, DO-41 body, rated −55 °C to 175 °C. Put it across your line and stop wondering why the next component always dies first
| brand | Jaycar |
| part_number | P4KE |
| zener_voltage | 12.8V |
| standoff_current | 15A |
| peak_power_rating | 400W AC |
| steady_state_power | 1W |
| package | DO-41 |
| operating_temperature | -55°C to 175°C |
| type | Zener Diode |
| category | Electronics & Components |
| subcategory | Electronic Components |
