2N6490 Pinout, Equivalent, Application, Datasheet

Understanding the 2N6490 pinout is essential for designing high-current switching stages, power supplies, motor drivers, and audio amplifier circuits. The 2N6490 PNP transistor is a robust, high-power device widely used in industrial electronics because of its strong current capability, reliable voltage handling, and excellent thermal stability.

Introduction to 2N6490 PNP Transistor

The 2N6490 is a high-power PNP bipolar transistor designed for applications requiring strong current capability, stable operation, and efficient performance in both switching and linear power stages. Its rugged design and high voltage tolerance make it suitable for motor control, power regulation, audio amplifier output stages, and various heavy-duty industrial systems. With its TO-220 package and high dissipation capability, the 2N6490 is a dependable choice for engineers needing a robust PNP companion device in complementary power amplifier designs.

2N6490 PNP Transistor

Pinout of 2N6490

Pin Configuration of 2N6490 Pinout

Understanding the 2N6490 Pinout Configuration

The 2N6490 transistor is manufactured in a TO-220 package and follows the standard B-C-E (Base-Collector-Emitter) pin arrangement when viewing the front of the device with pins facing downward. This configuration ensures simple installation in amplifier boards, power modules, and switching circuits that require complementary transistor pairs.

Key Features of 2N6490 Transistor

• High-power PNP operation
• Durable construction for heavy load applications
• Suitable for complementary NPN–PNP amplifier stages
• Excellent thermal stability and heat dissipation
• Smooth performance in linear and switching modes
• Compatible with a wide variety of power electronics designs

2N6490 Transistor Datasheet and Specifications

• PNP Silicon Power Transistor
• Collector-Emitter Voltage (VCEO): 60V
• Collector-Base Voltage (VCBO): 70V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 15A
• Total Power Dissipation (Ptot): 75W
• DC Current Gain (hFE): As per datasheet, varies with current levels
• Operating Junction Temperature: Up to 150°C
• Package Type: TO-220
• Pin Configuration: B-C-E (from left to right, facing front)

Working Principle of 2N6490 Transistor

The 2N6490 operates as a PNP bipolar transistor, controlling current flow from the emitter to collector when a small current is drawn out of the base. In forward-active mode, it amplifies signals effectively, making it suitable for audio and linear regulation circuits. In saturation mode, it functions as a low-loss switch for power loads. Its complementary nature with NPN devices (such as 2N6488/2N6487) allows for balanced push-pull amplifier configurations and efficient power delivery in high-performance circuits.

More Circuit Layouts

Applications of 2N6490 Transistor

• High-power audio amplifier output stages (PNP side)
• Motor controllers and driver circuits
• Power supplies and voltage regulators
• Battery chargers and DC power systems
• Inverters and converter circuits
• High-current general-purpose switching

Equivalent and Alternative Transistors

Common equivalents and substitutions include:

• 2N6491 (similar family with slight rating variations)
• BD250 series
• MJE15031 series
• TIP42C (lower current alternative)
• MJ15016 (higher power substitute depending on application)

Always check exact voltage, current, and pinout compatibility before replacing.

Frequently Asked Questions (FAQ)

Q1: What is the pinout of the 2N6490?
It uses a B-C-E configuration in a TO-220 package.

Q2: Is the 2N6490 suitable for audio amplifiers?
Yes, it is commonly used in PNP output stages and complementary amplifier pairs.

Q3: Is a heatsink required?
Yes, when operating under high load conditions, a heatsink is essential.

Q4: Can it be used as a switch?
Yes, it performs well as a high-current PNP switch.

Q5: What is its complementary NPN transistor?
The complementary NPN device is typically the 2N6488.

Conclusion

The 2N6490 PNP transistor is a powerful and reliable device ideal for audio amplifiers, switching circuits, and high-current industrial applications. Its balanced electrical characteristics, strong power handling capability, and TO-220 package make it a versatile component for both professional and hobbyist electronics. Understanding its pinout, specifications, and proper usage ensures optimal performance in any circuit design.

Datasheet & Pinout of 2N6490 PNP Transistor

Click the following Button to download the datasheet of 2N6490 Transistor :

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