2N2905 Pinout, Equivalent, Applications and Other Info

In this article we are going to discuss about 2N2905 pinout, equivalent, applications and other info about this TO-39 PNP general purpose transistor.


2N2905 Pinout, Equivalent, Applications and Other Info



Features / Technical Specifications

  • Package Type: TO-39
  • Transistor Type: PNP
  • Max Collector Current(IC): -0.6A or -600mA
  • Max Collector-Emitter Voltage (VCE): -40V
  • Max Collector-Base Voltage (VCB): -60V
  • Max Emitter-Base Voltage (VEBO): -5V
  • Max Collector Dissipation (Pc): 0.6 Watt Or 600mW
  • Max Transition Frequency (fT): 200 MHz
  • Minimum & Maximum DC Current Gain (hFE): 30 – 300
  • Max Storage & Operating temperature Should Be: -65 to +200


NPN Complementary:

NPN Complementary of 2N2905 is 2N2219


Replacement and Equivalent

2N2904, 2N5151, 2N5153, BSS61, BSS62 (Check pin configuration before replacing in circuit)


2N2905 Transistor Explained / Description

If you are searching for a transistor that is little bit high power than the general purpose transistors such as 2N2907, BC557, 2N3906, 2N4403, S9015 etc. then 2N2905 might be a good choice. It can be used in wide variety general purpose applications for switching and amplification purposes.

The transistor is built in TO-39 metal package and can survive in higher temperatures than the TO-92 package transistors mentioned above. The transistor features upto 0.6A collector current due to which you can drive wide variety of loads.

Moreover the transistor can also it will also work well for amplification of audio and other signal and it can also work as an RF oscillator and RF amplification purpose under the frequency range of 200MHz.


Where We Can Use it & How to Use

2N2905 transistor is capable to work in any type of general purpose application that falls under its ratings. It features fast switching capabilities due to which it can be used for any type of fast and normal speed switching requirements and capable to drive load of upto 800mA. Moreover, it can also be used as an amplifier not only in audio amplifier applications but it can also be used to amplify any type of electronic signals. Other than that it will also perform well in radio and RF circuits under 200MHz frequency.



Radio & RF Applications

Switching Loads under 600mA

Audio Amplifier

Signal Amplifier

Darlington Pairs

Many Types of General Purpose Applications


How to Get Long Term Performance in a Circuit

To get long term performance it is suggested to always use a component 20% below from its absolute maximum ratings and same applies to 2N2905 transistor. The max collector current is -600mA therefore do not drive load of more than -480mA. The max collector-emitter voltage is -40V therefore do not drive load of more than -32V. Use a proper heatsink with the transistor and always store or operate the transistor in temperature above -65 degree centigrade and below +200 degree centigrade.



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


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