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1N4148 Diode

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1N4148 Pin Configuration

Pin No.

Pin Name

Description

1

Anode

Current always Enters through Anode

2

Cathode

Current always Exits through Cathode

 

1N4148 Diode Characteristics

  • Fast switching Diode
  • Peak repetitive Reverse voltage is 100V
  • RMS reverse voltage is 75V
  • Peak forward surge current is 2A
  • Forward continuous current If 300mA
  • Reverse recovery time 8ns
  • Available in DO-35 Package

Note: Complete Technical Details can be found at the 1N4148 datasheet given at the end of this page.

 

1N4148 Equivalent Diodes

1N914, IN914A, 1N914B, 1N916, 1N916A, 1N916B, 1N4448, 1N4448WS, 1N4448W, 1N4148WS

 

Description

A diode is a device which allows current flow through only one direction. That is the current should always flow from the Anode to cathode. The cathode terminal can be identified by using a grey bar as shown in the picture above.

For IN4148 Diode, the maximum current carrying capacity is 300mA it can withstand peaks up to 2A. The speciality of this diode is its fast recovery time of 8ns at a forward current of 10mA, hence this diode is used in places where fast switching are involved.

 

Applications of Diodes

  • Can be used to prevent reverse polarity problem
  • Protect Power electronic switches that are operating with high switching frequency.
  • Half Wave and Full Wave rectifiers
  • Used as a protection device
  • Current flow regulators

 

2D representation (DO-35)

1N4148 Diode Dimensions




Download Datasheet PDF:
1N4148 Diode Datasheet
Tags Diode