BDX54C Transistor Pinout, Features, Equivalent, Applications and Other Details

BDX54C is a PNP Darlington transistor available in TO-220 package. Today we are going to explain BDX54C transistor pinout, features, equivalent, applications and other details about it.


BDX54C Transistor Pinout, Features, Equivalent, Applications and Other Details



Absolute Maximum Ratings:

  • Package Type: TO-220
  • Transistor Type: PNP Darlington
  • Max Collector Current(IC): -8A
  • Max Collector-Emitter Voltage (VCEO): -100V
  • Max Collector-Base Voltage (VCBO): -100V
  • Max Emitter-Base Voltage (VEBO): -5V
  • Max Collector Power Dissipation (Pc): 60 Watt
  • Minimum DC Current Gain (hFE): 750
  • Max Storage & Operating temperature: -65 to +150 Centigrade


NPN Complementary:

The NPN complimentary of BDX54C is BDX53C


Replacement and Equivalent:

TIP107, TIP137, MJF6668, BDX34C/D, BDX94C, BDW74C/D, BDW47, BDT62B, BD652, 2SB886, TIP137, NTE264, NTE2344, BDX34E


BDX54C Transistor Explained / Description:

BDX54C is a medium power transistor designed to be used in audio amps, switching, hammer drivers and power liner applications but despite these applications, it can also be used in many general purpose applications. The transistor is available in TO-220 package and pin configuration of the transistor are the first pin is Base, second pin is Collector and the third pin is Emitter.

BDX54C is a PNP Darlington transistor. This type of transistor contains two PNP transistors inside and connected in a special way that provides high current gain at the output.

Looking at the absolute max ratings of the transistor, the max collector current is -8A, max collector to emitter voltage is -100V, max collector-base voltage is also -100V, max emitter-base voltage is -5V and max collector power dissipation is 60Watt.


Where We Can Use it & How to Use:

As mentioned the BDX54C transistor is designed for audio amps, switching, hammer drivers, and power liner applications but it is not limited to these applications and it can also be used in a variety of other applications.

To use the transistor first of all check its pin configuration then connect its Base to the signal you want to amplify or control a load through this signal. Now connect the Emitter with the negative supply and collector with the load. And other part of the load will connected with the negative supply of the circuit.



LED Drivers

Motor Control

Audio Amplifiers

Switching Circuits

Voltage inverters

Pulse Generator

DC to DC Converters

Voltage Regulation

Battery Operated Applications


Safe Operating Guidelines:

Here are the operating guidelines of the transistor.

  • First of all, it is important to not use a transistor to its absolute maximum ratings and stay 20% below form these ratings.
  • So according to this rule, the maximum continuous current is -8A so we will not drive load of more than 6.4A.
  • Max collector-emitter voltage is -100V therefore do not drive load of more than -80V.
  • The max temperature capability of the transistor is from -55°C to 150°C. so stay between these limits.



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

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