2N6228

Overview

The Microchip Technology 2N6228 is a silicon PNP power bipolar junction transistor housed in a hermetically sealed TO-3 metal package. It features a maximum collector current of 6 A and a collector-emitter breakdown voltage of 140 V. The device supports a maximum operating temperature of 200 °C and has a minimum DC current gain (hFE) of 15. With a maximum power dissipation of 150 W, it is designed for high-power applications requiring robust thermal performance and reliable switching capabilities.

Feature Summary

• Hermetically sealed TO-3 metal package for enhanced environmental protection
• High power dissipation capability of 150 W for demanding thermal loads
• Extended maximum operating temperature rating up to 200 °C
• Silicon PNP construction optimized for high-current switching

Applications

• High-power linear regulation circuits
• Industrial motor control systems
• Power supply output stages
• High-voltage switching applications

Procurement Notes

Verify the specific manufacturer source, as the 2N6228 specification was originally defined by military standards and is produced by multiple vendors including Microchip Technology. Confirm that the received component matches the required TO-3 metal package and hermetic seal specifications. Ensure the datasheet aligns with the intended application's thermal and electrical requirements before integration.

Selection Notes

Select this component when high current handling and extreme temperature resilience are critical. The TO-3 package provides superior heat dissipation compared to plastic alternatives. Consider the 140 V breakdown voltage limit and 6 A current capacity against circuit demands. Verify compatibility with existing thermal management solutions due to the high power dissipation rating.

Part Context

The 2N6228 belongs to the family of silicon PNP power transistors historically used in rugged electronic systems. Originally specified under military standards, these devices are characterized by their durability and high-temperature operation. Microchip Technology continues to produce variants of this legacy part number, maintaining the original electrical characteristics and mechanical form factor for replacement in established designs.

Replacement Considerations

Direct substitutes include other manufacturers' versions of the 2N6228 that adhere to the same military-style specifications. When replacing, ensure the alternative maintains the TO-3 metal package and hermetic sealing properties. Verify that the replacement part meets the 150 W dissipation and 200 °C temperature ratings to avoid thermal failure.