2SA1265 Transistor Pinout, Equivalent, Features, Applications and other Technical Capabilities

A1265 which has full part number 2SA1265 is a PNP transistor available in TO-3PI package. In this article we will explore 2SA1265 transistor pinout, equivalent, features, applications and other technical capabilities.

 

 

Absolute Maximum Ratings:

• Package Type: TO-3P(I)
• Transistor Type: PNP
• Max Collector Current(I_C): –10A
• Max Collector-Emitter Voltage (V_CE): –140V
• Max Collector-Base Voltage (V_CB): –140V
• Max Emitter-Base Voltage (VEBO): –5V
• Max Collector Dissipation (Pc): 100 Watt
• Minimum & Maximum DC Current Gain (h_FE): 55 To 160
• Max Storage & Operating temperature: -55 to +150 Centigrade

 

NPN Complementary:

NPN Complementary of 2SA1265 is 2SC3182

 

Replacement & Equivalent

2SB863, 2SA2120, 2SA1962, 2SA1942, 2SA1805, 2SA1516, KTA1962, KTA1943, 2SA2151, 2SA1491, 2SA1386, 2SA1302, 2SA1186.

 

2SA1265 Transistor Explained / Description:

2SA1265 is a PNP transistor available in TO-3PI package. The transistor is designed to be used in power amplifier applications. It features high collector-emitter voltage, good collector current, good linearity and availability of its NPN complimentary transistor.

The absolute maximum ratings of the transistor are as follows: The collector current is -10A, collector-emitter voltage is -140V, base current is -1A, emitter-base voltage is -5V, collector power dissipation is 100W, junction temperature is 150°C and storage temperature range is -55°C to 150°C.

2SA1265 is available in two different versions according to its DC current gain and each version can be identified with the help of the alphabetic code written after the part number. The code “R” means DC current gain of 55 to 110 and code “O” means DC current gain of 80 to 160.

 

How to Use This Transistor:

Although 2SA1265 is designed for amplifier applications but can also be used in many other applications. To use it as a switch apply signal to base through a suitable current limiting resistor, connect its emitter with the positive rail of the circuit and connect load to its collector pin.

To use it as an amplifier apply signal which you want to amplify to its base pin, connect its emitter pin with the positive rail of the circuit and receive the amplified signal from its collector. The amplifier circuits are not simple as the switch circuit and they need some passive components for proper functioning.

 

Applications:

Audio Power Amplifier Circuits

Audio Amplifier Stages

Switching load of up to -10A

Power Supply Circuits

High voltage applications (Up to 140V)

 

Safe Operating Guidelines:

Some important guidelines to safely operate the transistor:

• To safely operate the transistor always operate it at least 20% to 30% below its absolute maximum ratings.
• Check transistor’s pin layout before using in your circuit
• A suitable heatsink should be used.
• Always store and operate the transistor at temperatures between -55°C and +150°C.

 

Datasheet:

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

https://www.alldatasheet.com/datasheet-pdf/view/817882/ISC/2SA1265.html