2N2904AL

Single Bipolar Transistors Overview

The Microchip Technology 2N2904AL is a military-qualified PNP silicon switching transistor designed for high-reliability applications. It features a maximum collector-emitter voltage of 60 V and a continuous collector current of 600 mA. The device operates within a junction temperature range of -65°C to +200°C and offers a minimum DC current gain (hFE) of 40 at 150 mA and 10 V. Packaged in a hermetic TO-5 metal can, it dissipates up to 800 mW of power.

Single Bipolar Transistors Feature Summary

• Qualified per MIL-PRF-19500/290 for JANS level high-reliability applications
• Hermetically sealed metal TO-5 package construction
• Designed for high-speed switching and general-purpose functions

Single Bipolar Transistors Applications

• High-reliability aerospace systems
• Military electronic circuits
• Harsh environment switching applications

Single Bipolar Transistors Procurement Notes

Verify the specific qualification level (JAN, JANTX, or JANTXV) required for your application, as these levels offer varying degrees of screening and reliability assurance. Confirm that the TO-5 hermetic package meets the environmental sealing requirements of your system. Ensure that the thermal management design accounts for the 800 mW power dissipation limit and the specified derating curves above 25°C to maintain safe operating junction temperatures.

Single Bipolar Transistors Selection Notes

Select this component when military-grade reliability and hermetic sealing are mandatory. The 60 V rating and 600 mA current capacity suit moderate power switching tasks. Consider the TO-5 package constraints for board space and mounting. Compare against commercial equivalents if cost is critical and environmental exposure is controlled, noting that the AL suffix denotes specific military qualification standards.

Single Bipolar Transistors Part Context

The 2N2904AL belongs to the broader 2N2904 family of PNP transistors manufactured by Microchip Technology. While standard 2N2904 variants may exist in different packages like TO-39 or with lower power ratings, the AL designation specifically indicates compliance with MIL-PRF-19500/290. This places the part in a niche category of ruggedized discrete semiconductors intended for defense and space sectors rather than consumer electronics.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other JANS-qualified versions such as the JANTX2N2904AL from Microchip. Cross-manufacturer replacements must match the TO-5 hermetic package, 60 V VCEO, and 600 mA IC specifications. Verify that any alternative meets the same MIL-PRF-19500/290 qualification level to ensure compatibility with existing reliability requirements.