2N5191 Pinout, Equivalent, Application, Datasheet

If you are looking for a powerful medium-power transistor with solid performance, this detailed guide covers the complete 2N5191 pinout, electrical specifications, equivalent options, and practical applications. The 2N5191 NPN transistor is widely used in audio stages, switching circuits, motor drivers, and high-efficiency power control modules.

Introduction to 2N5191 NPN Transistor

The 2N5191 is a highly reliable NPN bipolar power transistor designed for medium-to-high power switching and linear amplification. With its 60V collector-emitter voltage, 60V collector-base voltage, and an impressive 4A continuous current rating, this transistor is perfect for demanding electronic environments requiring strength and stability.

Built in a compact but thermally robust TO-126 package, the 2N5191 supports 40W power dissipation, making it an excellent choice for compact power supplies, audio output stages, and motor-control circuits. Its switching behavior and linear response allow engineers and hobbyists to integrate it into a wide variety of industrial and consumer devices.

2N5191 NPN Transistor

Pinout of 2N5191

Pin Configuration of 2N5191 Pinout

Understanding the 2N5191 Pinout Configuration

The 2N5191 pinout follows the E-C-B (Emitter-Collector-Base) arrangement when viewed from the front of the TO-126 package. Correct pin identification is essential for preventing reverse current flow or accidental transistor damage.

Key Features of 2N5191 Transistor

• Medium-power switching capability
• Rugged construction suitable for industrial applications
• Reliable performance in both linear and saturated modes
• Suitable for compact PCB designs
• Efficient heat transfer through TO-126 package
• Stable current gain across various loads

2N5191 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): 4 A
• Power Dissipation (Ptot): 40 W
• DC Current Gain (hFE): Typical mid-range gain
• Transition Frequency (fT): Standard switching frequency range
• Package Type: TO-126
• Pin Configuration: E-C-B
• Transistor Type: NPN

Working Principle of 2N5191 Transistor

The 2N5191 operates like a standard NPN BJT: a small current applied to the base allows a much larger current to flow from collector to emitter. This characteristic makes it ideal for:

• Switching medium-power loads
• Driving motors, lamps, coils, and relays
• Audio power control stages
• Linear voltage regulation circuits

Its efficient switching performance also reduces heating and improves energy efficiency in repetitive switching applications.

More Circuit Layouts

Applications of 2N5191 Transistor

• Audio amplifier output stages
• DC motor drivers
• Relay and solenoid activation
• Power regulation and SMPS circuits
• UPS and inverter circuits
• Battery charger modules
• Medium-power switching blocks

Equivalent and Alternative Transistors

Suitable replacement options include:

• BD241B
• BD239B
• TIP41A
• 2SD613
• MJE802
• BD237

Always verify pin sequence and thermal requirements before substitution.

Frequently Asked Questions (FAQ)

What is the 2N5191 used for?

It is used for switching, audio amplification, motor driving, and medium-power regulation circuits.

What is the 2N5191 pinout?

The pinout is Emitter-Collector-Base (E-C-B).

What is the maximum current rating?

It can handle up to 4A continuous collector current.

Is the 2N5191 NPN or PNP?

The 2N5191 is an NPN transistor.

What is the complementary transistor?

Its complementary PNP type is 2N5192.

Conclusion

The 2N5191 NPN transistor is a versatile, durable, and high-performance component widely used in medium-power switching and amplifier circuits. Its 60V rating, 4A current capability, and 40W dissipation make it reliable for a variety of industrial and hobbyist applications. Understanding its 2N5191 pinout, equivalent options, and detailed specifications guarantees proper implementation and long-term circuit reliability.

Datasheet & Pinout of 2N5191 NPN Transistor

Click the following Button to download the datasheet of 2N5191 Transistor :

More projects, You may like:

• Video Transmitter DIY Homemade FM Radio Transmitter
• Adjustable Power Supply DIY Battery Charger
• 12V-220V 500 Watt inverter DIY Homemade
• MPPT Solar Charge Controller DIY Homemade
• DIY LA4440 bass amplifier homemade

For more project and circuit diagrams, you can go through the Schematics in the main menu where you can find many interesting projects and circuit diagrams like audio amplifier circuits, voltage booster circuit, battery charger circuit and timer circuits etc., which are all beginner circuit projects. Feel free to check them out!

Thank you for visiting the article.