2SC5242 Transistor Pinout, Features, Equivalents, Applications and Other Details

In this article we are going to understand 2SC5242 transistor pinout, features, equivalents, applications and other details about this TO-3P package NPN transistor.

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2SC5242 Transistor Pinout, Features, Equivalents, Applications and Other Details

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Absolute Maximum Ratings:

  • Package Type: TO-3P
  • Transistor Type: NPN
  • Max Collector Current(IC): 15A
  • Max Collector-Emitter Voltage (VCE): 230V
  • Max Collector-Base Voltage (VCB): 230V
  • Max Emitter-Base Voltage (VEBO): 5V
  • Base Current (IB): 5A
  • Max Collector Dissipation (Pc): 130 Watt
  • Minimum & Maximum DC Current Gain (hFE): 55 To 160
  • Max Storage & Operating temperature: -55 to +150 Centigrade

 

PNP Complementary:­

PNP Complementary of 2SC5242 is 2SA1962

 

Replacement and Equivalent:

BU941B, 2SC5359, 2SC5242, BUF420

 

2SC5242 Transistor Explained / Description:

2SC5242 is an NPN transistor available in TO-3P package. The transistor has many built in features such as high collector-emitter voltage, good collector current, transition frequency of 30MHz, good collector breakdown voltage, and availability of its PNP complimentary transistor. The transistor is mainly designed to be used in the output stage of high fidelity audio amplifiers but can also be used in other applications such as RF and switching.

Looking at the absolute maximum ratings of the transistor, the collector-emitter voltage is 230V, collector current is 15A, collector-base voltage is also 230V, emitter-base voltage is 5V, base current is 1.5A, collector power dissipation is 130W, junction temperature is 150°C and storage temperature is from -55°C to 150°C.

This transistor manufactured in two different DC current gain values and these gain values can be determined by the alphabet writer after the part number, now if that alphabet is “R” then the transistor’s gain value will be from 55 to 110, and if the alphabet is “O” then the transistor’s gain value will be from 80 to 160.

 

How to Use This Transistor:

As discussed above that the transistor is designed to be used in amplifier applications but it is not limited to only these applications and can also be used in switching and RF applications.

To use the transistor as a switch apply signals from which you want to control the output load through a current limiting resistor to its base pin (Usually a resistor of 1K to 10K is used), the emitter pin will be connected with the negative rail (ground) of the power supply and the output load will be derived through the collector pin.

To use the transistor as an amplifier apply signals which you want to amplify at the base pin of the transistor through an electrolytic capacitor (Usually an electrolytic capacitor from 1uf to 10uF is used), connect emitter pin with the negative rail (ground) of the power supply and the amplified output will be received at the collector pin. This simple amplifier circuit will not provide good performance and discussed here only to understand the concept of how to use the transistor as an amplifier and also to understand how it works as an amplifier. To build a better amplifier circuit with a single transistor you also have to use other passive components.

 

Applications:

HiFi Audio Amplifiers

Audio Amplifier Stages

Inductive Load switching

Battery Management Systems

DC to DC Converters

PWM Circuits

Switching Regulators

Switching load of up to 10A

 

Safe Operating Guidelines:

Here are some important guidelines to safely operate the transistor.

  • Always use the transistor atleast 20% below from its absolute maximum ratings.
  • Always check pin layout of the transistor before use.
  • A heatsink should be used with the transistor.
  • Store or operate the transistor between the temperature ranges from -55°C to +150°C.

 

Datasheet:

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

https://www.mouser.com/datasheet/2/408/7895-39605.pdf

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