2SA965 Pinout, Equivalents, Features, Applications and Other Useful Info

2SA965 is also a feature rich transistor available in TO-92MOD package. This post covers all the details of this transistor such as its pinout, equivalents, features, applications and other useful information about this device.

Absolute Maximum Ratings:

• Package Type: TO-92MOD
• Transistor Type:  PNP
• Max Collector Current(I_C): –800mA
• Max Collector-Emitter Voltage (V_CEO): –120V
• Max Collector-Base Voltage (V_CBO): –120V
• Max Emitter-Base Voltage (V_EBO): –5V
• Max Collector Power Dissipation (P_C): 900mW
• Max Transition Frequency (f_T): 120 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 2SA965 is SC2235

 

Replacement and Equivalent:

ZTX704, 2SB212

 

2SA965 Transistor Explained / Description:

2SA965 is an another feature rich transistor available in TO-92MOD package. The transistor has many good features such as high voltage, good collector current, upto 120MHz transition frequency and availability of it complimentary pair.

Looking at the absolute maximum ratings of the transistor the maximum collector-emitter voltage is -120V, collector current is -800mA, collector-base voltage is also -120V, emitter-base voltage is -5V, emitter current is 800mA, collector power dissipation is 900mW, junction temperature is 150°C and storage temperature is from -55°C to 150°C.

The transistor is available in two different variations according to its DC current gain or hFE and can be identified by the letter “O” or “Y” written after its part number. If the letter is “O” then its DC current gain will be 80-160 and if the letter is “Y” then the DC current gain will be 120 to 240.

Where and How to Use This Transistor:

2SA965 is designed to be used in audio applications such as amplifier and their driver stages but it is not limited to these applications and can also be used in variety of other applications. Here we are going to discuss a simple one transistor amplifier application that you will find in most of the electronic musical toys, electronic door bells, etc.

To make a one transistor amplifier connect the emitter pin with the positive rail of the circuit, apply audio signals which you want to amplify at the base pin of the transistor through a electrolytic capacitor (Use any suitable capacitor from 1uF to 10uF) and connect the speaker between collector pin and the negative rail of the circuit.

 

Applications:

Audio Amplifiers

Preamplifier Circuits

Audio Amps Driver Stages

Switching applications

RF Circuits

Variety of General Other Purpose Applications

 

Safe Operating Guidelines:

Follow these guidelines to safely operate the transistor:

• Always use the transistor at least 20% below from its absolute maximum ratings.
• The maximum collector-emitter voltage is -120V but according to the above guidelines we will not drive load of more than -96V.
• The maximum collector current is -800mA or -0.8A but we will follow the same rule as above and not drive load of more than -640mA
• The maximum collector current is 800mA but same as above by following the 20% rule we will stay under 640mA, mean we will not drive load of more than 640mA.
• Always confirm the pin layout before use.
• The maximum storage and operating temperature of the transistor should 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/82625/TOSHIBA/2SA965.html