2N6517 Pinout, Equivalent, Application, Datasheet

Understanding the 2N6517 pinout is essential for designing high-voltage switching circuits, signal amplifiers, bias networks, and industrial control systems. The 2N6517 NPN transistor provides exceptional voltage tolerance, stable gain, and reliable operation in low-current, high-voltage environments. This article explains its pin configuration, features, datasheet specifications, working principle, applications, and equivalent alternatives to help you integrate the 2N6517 effectively into modern electronic designs.

Introduction to 2N6517 NPN Transistor

The 2N6517 is a high-voltage NPN bipolar transistor designed for low-current switching and small-signal amplification. With an impressive voltage rating of 350V, it is suitable for applications where wide safety margins are required, such as power regulation, control circuitry, feedback loops, and high-voltage sensing stages. Its compact TO-92 package and consistent electrical characteristics make it ideal for both industrial and general-purpose electronic designs.

2N6517 NPN Transistor

Pinout of 2N6517

Pin Configuration of 2N6517 Pinout

Understanding the 2N6517 Pinout Configuration

The 2N6517 pinout follows a standard E-B-C (Emitter–Base–Collector) layout when viewed from the flat side of the TO-92 package.

• Emitter – Current output path
• Base – Controls transistor operation
• Collector – Connects to load or high-potential source

Correct pin identification is critical to ensure safe operation, prevent reverse polarity failures, and maintain reliable functionality in high-voltage applications.

Key Features of 2N6517 Transistor

• High-voltage handling capability
• Suitable for low-current high-voltage switching
• Stable gain for general-purpose amplification
• Fast switching response
• Compact TO-92 package for space-constrained designs

2N6517 Transistor Datasheet and Specifications

• Collector–Emitter Voltage (VCEO): 350V
• Collector–Base Voltage (VCBO): 350V
• Emitter–Base Voltage (VEBO): 5V
• Collector Current (IC): 500mA
• Total Power Dissipation (PT): 625mW
• DC Current Gain (hFE): Datasheet dependent
• Transition Frequency (fT): Depends on frequency test conditions
• Package Type: TO-92
• Pin Configuration: E-B-C

Working Principle of 2N6517 Transistor

The 2N6517 operates as a standard NPN transistor where a small current applied to the base allows a much larger current to flow from collector to emitter. It is optimized for applications requiring high voltage with low to moderate current levels. When the base-emitter junction is forward biased, the transistor turns ON, making it useful for switching and signal-level tasks within high-voltage circuits.

More Circuit Layouts

Applications of 2N6517 Transistor

• High-voltage signal switching
• Feedback and sensing circuits
• Low-current driver stages
• Voltage regulation and control modules
• Level shifting in high-voltage designs
• General-purpose and educational electronics

Equivalent and Alternative Transistors

Close equivalents include:

• MPSA42
• MPSA44
• 2N5551 (lower voltage rating)
• KSC3503
• BD139 (higher current, different package)

(Always check the pinout differences before substitution.)

Frequently Asked Questions (FAQ)

Q1: What is the pin configuration of the 2N6517?
The pinout is E-B-C when viewed from the front (flat side).

Q2: Can the 2N6517 be used for high-current applications?
No, it is rated for 500mA max, suitable for low-current circuits only.

Q3: Is 2N6517 good for audio circuits?
It can be used in high-voltage small-signal audio stages, but not for high-power output.

Q4: Can it replace MPSA42?
Yes, it is often used as a high-voltage substitute, but confirm pin configuration.

Conclusion

The 2N6517 is a high-voltage NPN transistor ideal for low-current switching, sensing circuits, feedback networks, and signal-level control systems. Its robust 350V rating and TO-92 compact design make it a reliable choice for high-voltage electronics and industrial applications. Understanding the 2N6517 pinout and electrical specifications ensures safe and efficient performance in demanding circuit environments.

Datasheet & Pinout of 2N6517 NPN Transistor

Click the following Button to download the datasheet of 2N6517 Transistor :

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