A940 PNP Transistor: 2SA940 150V 1.5A Power Transistor, TO-220 and Equivalents

2SA940 is a PNP BJT transistor in a TO-220  package. This transistor is intended for general-purpose amplification and vertical output circuits, although it is not confined to these applications and can be utilized in a wide range of other applications. It also has a fast switching capability, which makes it excellent for applications that require quick switching. It can drive a maximum load of -1.5A and a maximum load voltage of -150V when used as a switch.

A940 Pinout

• Type: PNP 

• Collector-Emitter Voltage: -150 V

• Collector-Base Voltage: -150 V

• Emitter-Base Voltage: -5 V

• Collector Current: -1.5 A

• Collector Dissipation: 25 W

• DC Current Gain (hfe): 40 to 140

• Transition Frequency: 4 MHz

• Operating and Storage Junction Temperature Range: -55 to +150 °C

• Package: TO-220 

• Darlington Pair

• Audio Amplifiers

• Vertical Output Circuitry 

• Switching Loads under -1.5A

• Many general-purpose applications 

2SC2073, 2SA1304, 2SA740, 2SA940  A, 2SB546, 2SB546A, 2SB547, 2SB630, KSA1304, KSA940, KSB546, MJE15031, MJE15031G, MJE5850, MJE5850G, MJF15031, MJF15031G

The A940 is primarily intended for use in vertical output circuitry and general-purpose audio amplification, although it is not confined to these uses and can be utilized for a wide range of other applications. It can also be used as a switch to drive a wide range of loads under -1.5A, such as high-power transistors, high-power LEDs, Relays, ICs, and circuit components. Its general-purpose audio amplification applications include audio amplifiers and high-power audio amplifier stages.

It is recommended that you do not utilize a component to its absolute maximum ratings and instead use it 20 percent below those ratings for long-life performance. The same is true for the A940  transistor; the transistor's maximum collector current is -1.5A, therefore do not drive a load of more than 1.2A. Because the maximum collector to emitter voltage is -150V, do not drive loads higher than -120V. Use a proper heat sink with the transistor, and always store or operate it at temperatures between -55 and +150 degrees Celsius.

A940 Package Dimensions

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