8ETU04 Fast Recovery Diode 8A 400V TO-220
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Prices updated: 14 Oct 2026
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About this product
The 8ETU04 is a single fast-recovery rectifier diode rated for 8 A average forward current and 400 V reverse voltage, supplied in a TO-220 through-hole package. Its 60 ns reverse recovery time suits switch-mode power supplies, inverters and freewheeling circuits where fast switching matters.
Specifications
- Diode type
- Standard, fast recovery
- Max reverse voltage (Vr)
- 400 V
- Average rectified current (Io)
- 8 A
- Forward voltage (Vf)
- 1.3 V @ 8 A
- Reverse recovery time (trr)
- 60 ns
- Reverse leakage current
- 10 µA @ 400 V
- Package
- TO-220-2 (TO-220AC)
- Mounting type
- Through hole
Frequently asked questions
Can I use the 8ETU04 as an output rectifier in a switch-mode power supply?
Yes, it is a fast-recovery rectifier suited to switch-mode supplies. Confirm that the peak reverse voltage and average current in your circuit stay within the 400 V and 8 A ratings with a suitable margin.
Does the 8ETU04 need a heatsink?
At higher average currents the diode dissipates noticeable heat, so mounting it on a heatsink is recommended. Calculate the power dissipation for your operating current and check the datasheet's thermal data.
