2N5400 Transistor Pinout, Characteristics, Working, Applications and Explanation

2N5400 is a versatile high voltage PNP transistor with many good features and electrical characteristics in a small TO-92 package. In this post we are going to explore 2N5400 transistor pinout, characteristics, working, applications and explanation.


2N5400 Transistor Pinout, Characteristics, Working, Applications and Explanation



Features / Technical Specifications

  • Package Type: TO-92
  • Transistor Type: PNP
  • Max Collector Current(IC): 0.6A or 600mA
  • Max Collector-Emitter Voltage (VCE): 120V
  • Max Collector-Base Voltage (VCB): 130V
  • Max Emitter-Base Voltage (VBE): 5V
  • Max Collector Dissipation (Pc): 625 mW
  • Max Transition Frequency (fT): 100 MHz to 400MHz
  • Minimum & Maximum DC Current Gain (hFE): 30 – 180
  • Max Storage & Operating temperature Should be: -55 to +150 Centigrade


NPN Complementary:

NPN Complementary of 2N5400 is 2N5550


Replacement and Equivalent

2N5401, KTA1023, 2SB1212, KTA1275


2N5400 Transistor Explained / Description

2N5400 is an another versatile and robust general purpose PNP transistor available in TO-92 package. If you have used 2N2907, 2N3906 or BC557 etc. before and wanted that if their collector-emitter voltage were higher so you could also use them in your applications that requires general purpose TO-92 package transistor with higher voltage capability then this transistor can be a good choice for you.

The transistor contains all the features and electrical characteristics of a general purpose transistor with high emitter-collector voltage of upto 120V. Looking at the other absolute max ratings of the transistor the collector-base voltage is 130V, max emitter-base voltage is 5.0V, max collector current is upto 600mA and total device dissipation is 625mW.

The other electrical characteristics of the transistor are DC current gain of 30 to 180, collector to emitter saturation voltage is 0.2V to 0.5V transition frequency is 100 to 400MHz and noise figure is 8.0dB.

All these features and characteristics makes this transistor a versatile general purpose transistor which can be used wide range of applications from variety or amplification requirement to switching purposes.


Where We Can Use it & How to Use

2N5400 can be used wide variety of applications which are

Amplification: It can be used for amplification in wide variety of applications not only to boost audio signal but also to enhance its clarity.

Radio Frequency: Due to its high frequency capability it can also be used in variety of radio frequency applications.

Telecommunication: In telecommunication, this transistor is used to amplify signals and maintain the overall quality of voice.

 Switching: It can also be used as a switch in variety of applications, moreover, it can also be used in controlling the supply of different electronic devices and components in a circuit.



Low power audio amplifiers

Switch for small loads under 600mA

Audio frequency driver stages

LED driver circuits



Amplifying low power signals

Motor driver circuits

Medical Devices

Wireless Sensors

Wideband amplifiers

Power supply circuits (In power supply circuits it can be used as a voltage regulator or switch)


Safe Operating Guidelines

For getting long term performance with this transistor it is important to operate it with care and always stay under its max limits (Stay at least 20% below) from its absolute maximum ratings.

To get good and long term performance do not drive load of more than 480mA, load voltage should not be more than 96V, always use a suitable base resistor and do not expose to temperatures below -55 °C and above 150°C.



To Download the datasheet just copy and paste the below link in your browser.


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