2SC2631 Transistor Pinout, Equivalent, Applications, Features and More

This post explains 2SC2631 transistor pinout, equivalent, applications, features, where and how to use, safety guidelines and more.

 

Absolute Maximum Ratings:

• Package Type: TO-92
• Transistor Type: NPN
• Max Collector Current(I_C): 50mA
• Max Collector-Emitter Voltage (V_CE): 150V
• Max Collector-Base Voltage (V_CB): 150V
• Max Emitter-Base Voltage (VEBO): 5V
• Collector Power Dissipation (Pc): 750mW
• Transition Frequency (fT): 200 MHz
• DC Current Gain (h_FE): 130 to 330 (Two different variations, See text.)
• Max Storage & Operating temperature Should Be: -55 to +150 Centigrade

 

PNP Complementary:

PNP complimentary of 2SC2631 is 2SA1123

 

Replacement and Equivalent:

2SC3332, 2SC2909, BF420, 2SC3467F, 2SC3187, 2SC2705

 

2SC2631 Transistor Explained / Description:

2SC2631 is an NPN transistor available in TO-92 package. The transistor is packed with some very good features such as upto 150V of collector-emitter voltage, 5pf collector output capacitance, transition frequency of 200MHz, DC current gain of 130 to 330, collector power dissipation of 750mW and availability of complimentary transistor.

The absolute maximum ratings of the transistor are collector current of 50mA, collector-emitter voltage is 150V, emitter-base voltage is -5V, collector-base voltage is 150V, collector power dissipation is 750mW and storage and junction temperature is -55 ̊C to +150 ̊C.

2SC2631 is available in two different versions according to its DC current gain which can be determined with the help of the alphabet letters written on the transistor, if that letter is “R” then its DC current gain will be 130 to 220 and if the letter is “S” then the DC current gain of the transistor will be 185 to 330.

 

How to Use this Transistor:

Here are the two simple procedures to use the transistor as a switch or amplifier.

To use it as a switch connect the emitter pin of the transistor to the negative rail of the circuit, apply signals to the base through a current limiting resistor (signals from which you want to control the output load), usually a resistor between the value of 1K to 10K is used.

Similarly when using it as an audio amplifier the emitter pin will be connected to the ground, the signal that you want to amplify will be applied to the base through a capacitor. Mostly an electrolytic capacitor from the value of 1uf to 10uF is used, the electrolytic capacitor will filter the DC voltage and only transfer the audio signal (which will be in AC Form) to the base. The speaker will be connected between the collector pin and positive rail of the circuit. A same value electrolytic capacitor will also be used between the collector and the speaker.

 

Applications:

Switching Circuits

Audio Amplifier Circuits

Audio Amplifier Stages

Audio Preamplifier Circuits

Tx and Rx Circuits

Signal Amplification

Darlington Pairs

 

Safe Operating Guidelines:

Follow these guidelines to safely operate the transistor:

• Always use it at least 20% below from its absolute maximum ratings.
• So by following the above 20% below usage guidelines the max collector-emitter voltage is 150V but we will only stay under 120V.
• The maximum collector current is 50mA so we will only use 40mA.
• Always use a suitable heatsink with the transistor.
• The operating and junction temperature will be between -55°C to 150°C.

 

Datasheet:

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

https://www.alldatasheet.com/datasheet-pdf/view/12871/PANASONIC/2SC2631.html