2N6049

Overview

The Microchip Technology 2N6049 is a silicon planar epitaxial NPN power transistor designed for high-voltage switching applications. It features a collector-emitter breakdown voltage of 400V and a continuous collector current rating of 1A. The device operates with a maximum collector dissipation of 15W at 25°C case temperature. Packaged in the TO-3 metal can, it supports junction temperatures up to 200°C. Key electrical characteristics include a DC current gain (hFE) range of 20 to 70 at specified test conditions, ensuring reliable performance in linear and saturation modes.

Feature Summary

• High voltage capability suitable for demanding power switching environments
• Robust thermal design allowing operation at elevated junction temperatures
• Metal can packaging provides enhanced mechanical stability and heat dissipation

Applications

• High voltage switching circuits
• Linear regulator output stages
• Industrial power control systems

Procurement Notes

Verify the specific manufacturer lot code and date code against project requirements. Confirm RoHS compliance status as older TO-3 packages may vary. Ensure proper handling procedures are followed due to the metal case construction. Cross-reference pinout configurations if substituting from other manufacturers to prevent circuit damage during installation.

Selection Notes

Select this component when high voltage isolation and moderate current handling are required. Consider the TO-3 package size constraints and mounting requirements for thermal management. Evaluate the hFE spread for biasing stability in linear applications. Verify that the operating voltage remains below the 400V breakdown limit under all transient conditions.

Part Context

The 2N6049 belongs to the legacy discrete semiconductor portfolio maintained by Microchip Technology. It serves as a replacement for older military-grade or industrial NPN power transistors. The TO-3 package is standard for high-power through-hole applications requiring robust thermal paths. This part number represents a specific voltage and current class within the broader NPN transistor family.

Replacement Considerations

Direct substitutes include the 2N3055 series variants with matching voltage ratings. Check equivalent parts like the MJ2955 complement for complementary pair designs. Verify pinout compatibility before substitution. Ensure thermal resistance values meet the system's heat sink requirements.