1N5408 1000V 3A General Purpose Diode – Datasheet

The 1N5408 diode is a less cost, a high-current diode for circuit protection and voltage rectification. The 1N5408 has a continuous blocking voltage of 1000V and supports high forward currents up to 3A. The forward voltage drop of the diode is 1.2V.

Features of 1N5408

  • Good power handling capability
  • Good power handling capability
  • Low forward voltage
  • High forward surge capability
  • Low leakage current

Pinout of 1N5408

Specification of 1N5408

Package TypeAX-5A
Diode Element MaterialSILICON
Operating Temperature-Max175.0 Cel
Output Current-Max3 A
Peak Repeat. Reverse Voltage1000 V
Max. Reverse Current (Ir)0.5 mA
Max. Forward Voltage Drop (Vf)1.2 V

Uses of 1N5408

The 1N5408 can be used in many applications and is primarily built for rectification such as battery chargers, power supplies, and voltage boosters. Other than that, it can be used in any general-purpose application that can block current in the desired direction in a circuit or block voltage spikes.


  • Power supply for electronic equipment
  • Battery charging circuit
  • Adapter
  • Rectifier circuit
  • Switching device
  • Purpose of short-circuit protection
  • Voltage Blocking
  • Voltage Doublers Circuits

Equivalent of 1N5408

  • 1N5400, 1N5401, 1N5402, 1N5404, 1N5406, 1N5407, P300M, CR3-100, CR3-120, G3M, FR307, FR607, HER508, and V3510.

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