2N5961 Pinout, Equivalent, Application, Datasheet

If you need a reliable transistor for switching, small-signal amplification, or sensor interfacing, this complete guide covers everything, including the 2N5961 pinout, specifications, equivalents, and application uses. The 2N5961 NPN transistor is a versatile general-purpose device commonly used in low-power and medium-frequency electronic circuits.

Introduction to 2N5961 NPN Transistor

The 2N5961 is a compact and efficient NPN bipolar junction transistor designed for small-signal switching and amplification tasks. With its 60V collector-emitter voltage and 60V collector-base voltage, it provides excellent performance in a wide range of analog and digital circuits.

Its 100mA collector current and 625mW power dissipation make it suitable for driving small loads, interfacing sensors, operating digital logic outputs, and handling signal amplification in audio or RF front ends. Packaged in a standard TO-92, the 2N5961 provides reliability, low power consumption, and easy PCB integration.

2N5961 NPN Transistor

Pinout of 2N5961

Pin Configuration of 2N5961 Pinout

Understanding the 2N5961 Pinout Configuration

The 2N5961 pinout follows the common E-B-C (Emitter – Base – Collector) sequence when viewed from the front side of the TO-92 package (flat face forward, leads downward). Using the correct pin arrangement is essential for stable switching and signal performance.

Key Features of 2N5961 Transistor

• General-purpose NPN transistor
• Suitable for small-signal and low-power circuits
• High-voltage capability for TO-92 size
• Fast switching response
• Stable performance in digital and analog applications
• Compact, low-cost TO-92 packaging

2N5961 Transistor Datasheet and Specifications

• Collector-Emitter Voltage (Vce): 60 V
• Collector-Base Voltage (Vcb): 60 V
• Emitter-Base Voltage (Veb): 5 V
• Collector Current (Ic): 100 mA
• Power Dissipation (Ptot): 625 mW
• DC Gain (hFE): Moderate to high (varies with operating conditions)
• Package Type: TO-92
• Pin Configuration: E-B-C
• Transistor Type: NPN

Working Principle of 2N5961 Transistor

The 2N5961 works on the standard NPN transistor principle: a small current entering the base enables a larger current to flow from collector to emitter. Because it offers high voltage tolerance and moderate current capability, it fits well in:

• Digital switching circuits
• Small-signal audio amplifiers
• Sensor output amplification
• Microcontroller interface circuits
• RF pre-amp and low-power HF stages
• LED drivers and relay triggering

Its stable gain and low saturation characteristics make it a dependable transistor for both analog and digital designs.

More Circuit Layouts

Applications of 2N5961 Transistor

• Low-power switching
• General-purpose signal amplification
• Audio pre-amplifier stages
• Oscillator and RF small-signal circuits
• LED, buzzer, and small driver loads
• Logic-level interfacing
• Hobby electronics and prototyping

Equivalent and Alternative Transistors

Common equivalents for 2N5961 include:

• 2N3904
• 2N2222
• BC547
• MPS2222A
• S8050
• 2N5088

Always verify pinout differences; TO-92 transistors can vary by manufacturer.

Frequently Asked Questions (FAQ)

What is the 2N5961 used for?

It is used for switching, amplification, sensor interfacing, audio input stages, and general-purpose small-load driving.

What is the 2N5961 pinout?

The pinout is Emitter – Base – Collector (E-B-C) from left to right when the flat side faces you.

Is 2N5961 suitable for audio circuits?

Yes, it works well in low-noise pre-amplifier and signal conditioning circuits.

How much current can the 2N5961 handle?

The transistor supports up to 100mA collector current.

Can I replace 2N5961 with 2N3904 or BC547?

Yes, both are common replacements depending on voltage and gain requirements.

Conclusion

The 2N5961 NPN transistor is a dependable and versatile component for low-power switching and analog amplification. With its 60V voltage rating, 100mA current handling, and TO-92 size, it fits a wide range of digital, analog, sensor, and audio circuits. Knowing the 2N5961 pinout, equivalents, and application ranges helps you integrate it safely and effectively into any electronic design.

Datasheet & Pinout of 2N5961 NPN Transistor

Click the following Button to download the datasheet of 2N5961 Transistor :

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