1N5408 Diode Pinout, Equivalent, Datasheet, Features, Specifications & Other Details

This article describes about 1N5408 diode pinout, equivalent, datasheet, features, specifications & other details about this diode.


 1N5408 Diode Pinout, Equivalent, Datasheet, Features, Specifications & Other Details


Features / technical specifications

  • Package Type: Available in DO-201
  • Diode Type:  Rectifier Diode for General Purpose Applications
  • Max Repetitive Reverse Voltage is: 1000 Volts
  • Average Fwd Current: 3000mA Or 3A
  • Non-repetitive Max Fwd Current: 200A
  • Max Reverse Current is: 10uA
  • Max Storage & Operating temperature Should Be: -65 to +175 Centigrade


1N5408 Replacement and Equivalent

1N5408 can easily be replaced with other diodes of its series. Which are 1N5400, 1N5401, 1N5402, 1N5404, 1N5406, and 1N5407. The only differences between these diodes are the “Peak repetitive reverse voltage” and “Non repetitive reverse voltage but as far as you are using them in 12V to 24V circuitry then there will be no issue. But if you are using them in above 12V to 24V circuitry then you must check their “Peak repetitive and Non Repetitive revers voltages” and you must select higher “Peak repetitive reverse voltage” than your operating voltage. Other possible equivalents are P300M, CR3-100, CR3-120, G3M, FR307, FR607, HER508, and V3510.


1N5408 Diode Explained / Description

1N5408 is a diode of 1N540x series. It is a general purpose diode with many good features which makes it ideal to use in wide variety of general purpose applications. For example it is capable of handling maximum 3A or 3000mA of current across it.

It is manufactured in DO201 package that is a slightly bigger package from DO-41 but can be used in replacement of many DO-41 diodes if slightly bigger space is available.

It is also an ideal diode if you are looking for a little bit more ampere handling capabilities as compare to DO-41 diodes for example 1N4007, 1N4148 etc. In most applications you can replace these diodes with 1N5408 to get more forward current.


Where We Can Use It

As mentioned above 1N5408 can be used in many applications, it is mainly build to perform rectification in battery chargers, power supplies, voltage boosters etc. But other than that it can be used in any general purpose applications which can be blocking current in desired direction in a circuit, voltage spikes blocking etc.



Power Supplies

Battery Chargers

Voltage Doublers Circuits


Rectification Circuits

Components Protection Purposes

Blocking voltage and current in any desired direction


How to Safely Long Run in a Circuit

To get long term performance in your project, circuit or device it is suggested not use this diode in circuits operating on above 1000V, to get better performance always stay below the max specification / characteristics values. Do not operate or drive load more than 3A across this diode and always store and operate the device in temperature above -65 centigrade and below +175 centigrade.



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