UF5408 Diode

Specifications of UF5408 diode

  • Maximum Recurrent Peak Reverse Voltage: 1000 V
  • Maximum Average Forward Output Current: 3 A
  • Maximum Forward Voltage Drop per element at 1.0A DC: 1.7 V
  • Maximum reverse recovery time: 100 ns
  • Typical Junction Capacitance: 50 pF
  • Package: DO-27
  • Weight: 2.08 grams
  • Operating and Storage Temperature Range: -65...+150 °C

Polarity and Pinout

The UF5408 diode has a cathode (-) and anode (+). In the schematic symbol, the tip of the triangle with the line on top of it is the cathode. The cathode is marked on the body of a diode by a band as shown below.
UF5408 diode polarity
The current can flow from only the anode to the cathode and never from the cathode to the anode - the UF5408 diode is like a one way electric valve.

Dimensions of UF5408 diode

Dimensions UF5408 diode

Replacement and Equivalent

You can replace the UF5408 with the HER308, HER508