1N4002 100V 1A General Purpose Diode – Datasheet

The 1N4002 Rectifier Diode is a general-purpose silicon diode commonly used as a blocking diode or as a rectifier in power supplies converting AC power to DC power. The 1N4002 has a blocking voltage rating of 100V and can carry up to 1A of current. The forward voltage of the diode drop is 1.1V.

Features of 1N4002

  • Diffusion crossing
  • High current capability
  • Low forward voltage drop
  • Surge protection up to 30A peak
  • Low reverse leakage current
  • Lead-free finish, RoHS compliant

Pinout of 1N4002

Specification of 1N4002

Package TypeDO-41
Diode Element MaterialSILICON
Peak Surge Current (8.3mS)30.0 A
Operating Temperature-Max175.0 Cel
Output Current-Max1.0 A
Peak Repeat. Reverse Voltage100 V
Max. Reverse Current (Ir)0.01 mA
Max. RMS Reverse Voltage (Vr)70 V
Max Power Dissipation3 W
Reverse Current5 µA

Uses of 1N4002

1N4002 diode can be used in many general-purpose applications. It can be used to build a bridge rectifier, an integral part of DC power supplies that convert AC to DC. It can also be used for clipper applications, reverse current blocking in various component protection circuits, logic gates, etc.

Advantages of 1N4002

  • Cheap construction
  • Low forward voltage drop
  • Low reverse leakage
  • High forward surge current capability


  • Electronic Appliances Power Supplies
  • Battery Chargers Circuits
  • Adapters
  • Rectifier Circuit
  • Switching Devices
  • Short-Circuit Protection Purposes

Equivalents of 1N4002

  • 1N4003, 1N4004, 1N4005, 1N4006, and 1N4007

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