2N3879

Single Bipolar Transistors Overview

The Microchip Technology 2N3879 is a bipolar NPN transistor designed for high-reliability applications. It is housed in a hermetically sealed ceramic surface mount package, specifically SMD1 (TO-276AB). The device features a collector-emitter voltage rating of 75V and a continuous collector current capacity of 7A. This component is engineered to meet stringent military specifications, including BS, CECC, JAN, JANTX, JANTXV, and JANS standards, ensuring robust performance in demanding environments.

Single Bipolar Transistors Feature Summary

• Hermetically sealed ceramic construction for enhanced environmental protection
• Surface mount configuration compatible with TO-276AB footprint
• Qualified for rigorous military reliability standards including JANS and JANTXV

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify that the specific procurement lot carries the required military qualification suffix, such as JANS or JANTXV, as these denote compliance with specific reliability standards. Confirm the package type matches the SMD1 (TO-276AB) specification to ensure mechanical compatibility. Request full traceability documentation and test reports to validate hermetic seal integrity and electrical parameters against the official datasheet requirements.

Single Bipolar Transistors Selection Notes

Select this component when hermetic sealing is mandatory for long-term reliability in extreme conditions. The 7A current handling and 75V voltage rating define its operational limits. Ensure the design accommodates the thermal characteristics of the ceramic surface mount package. Verify that the application does not require leaded alternatives if strict space constraints exist, as this is a specialized surface mount device.

Single Bipolar Transistors Part Context

This transistor belongs to a family of hermetically sealed semiconductor devices manufactured by All Sensors, now part of Microchip Technology. These components are distinct from standard commercial transistors due to their ceramic packaging and military qualification. They are intended for critical applications where failure is not an option, providing superior stability compared to plastic-packaged equivalents.

Single Bipolar Transistors Replacement Considerations

Direct replacements must match the TO-276AB (SMD1) outline and hermetic seal requirement. Standard plastic NPN transistors are not suitable substitutes. Verify equivalent parts against JAN or JANS specifications to maintain system reliability and environmental resilience.