2SA1020 Transistor Pinout, Equivalent, Applications, Features and Other Details

2SA1020 or A1020 is a TO-92MOD PNP transistor designed to be used in switching and amplifier applications. This post explains 2SA1020 transistor pinout, equivalent, applications, features and other details about it.

 

Absolute Maximum Ratings:

• Package Type: TO-92MOD
• Transistor Type:  PNP
• Max Collector Current(I_C): –2A
• Max Collector-Emitter Voltage (V_CEO): –50V
• Max Collector-Base Voltage (V_CBO): –50V
• Max Emitter-Base Voltage (V_EBO): –5V
• Max Collector Power Dissipation (P_C): 900mW
• Max Transition Frequency (f_T): 100 MHz (TYP)
• Minimum & Maximum DC Current Gain (h_FE): 80 – 240
• Max Storage & Operating temperature Should Be: -55 to +150 Centigrade

 

NPN Complimentary:

The NPN complimentary of 2SA1020 is 2SC2655

 

Replacement and Equivalent:

ZTX955, CSA1020Y, 2SB892, 2SB1434, 2SB1312, 2SB1066, 2SA1761, 2SA1680

 

2SA1020 Transistor Explained / Description:

2SA1020 is a PNP transistor designed to be used in power switching and power amp applications. The transistor features high switching speed and low collector saturation voltage, high collector current, high transition frequency, and availability of the NPN complimentary transistor.

Looking at the absolute maximum ratings of the transistor the collector-emitter voltage is -50V, collector current is -2A, collector-base voltage is also -50V, emitter-base voltage is -5V, collector power dissipation is 900mW, junction temperature is 150°C and storage and operating temperature is -55°C to 150°C.

The transistor is available in two different variations according to its hFE or DC current gain and can be identified by the alphabet written after the part number. If the alphabet is “O” it means the gain is 70 to 140 and if it is “Y” it means the gain is 120 to 240.

 

How to Use This Transistor:

As mentioned above this transistor can be used as a switch and amplifier, here we will discuss simple procedures to use it as a switch or amplifier so you can understand how this transistor is used for these purposes.

To use it as a switch apply signals through which you want to control the load to its base through a suitable current limiting resistor. You can use any resistor from 1K to 10K. Connect its emitter with the positive supply of the circuit and connect the load between the collector and the negative rail of the circuit.

To use the transistor as a simple amplifier apply signals which you want to amplify to its base through a suitable electrolytic capacitor. You can use any capacitor value from 1uF to 10uF. Connect the emitter pin with the positive supply of the circuit and connect speaker between collector and the negative supply of the circuit. This is a very simple circuit of an amplifier and it is mostly used at the audio output of electronic bells, toys, and other equipment which produce musical sounds.

 

Applications:

Switching Circuits

Preamplifier Circuits

Audio Amplifiers

RF Circuits

Audio Amps Driver Stages

Switching applications

Variety of General Other Purpose Applications

 

Safe Operating Guidelines:

Follow these guidelines to safely operate the transistor:

• Do not drive the transistor at its absolute maximum ratings and always stay at least 20% below from these ratings.
• The maximum collector-emitter voltage is -50V but by following the above guidelines we will not drive load of more than -40V.
• The maximum collector current is -2A but we will not drive load of more than 1.6A.
• Always confirm pin layout before use.
• The storage and operating 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.mouser.com/datasheet/2/308/2SA1020-D-1801444.pdf