JAN2N6990

Overview

The JAN2N6990 is a military-grade NPN quad small-signal bipolar junction transistor (BJT) manufactured by Microchip Technology. It integrates four independent NPN transistors within a single surface-mount package, specifically designed for high-reliability applications. The device supports a maximum collector current of 800 mA and a collector-emitter voltage rating of 50 V. With a power dissipation capacity of 400 mW and an operating temperature range extending from -65°C to +200°C, it meets stringent MIL-PRF-19500/559 standards for space and defense electronics.

Feature Summary

• Quad configuration integrating four matched NPN transistors in a compact SMT footprint
• Qualified to MIL-PRF-19500/559 for enhanced reliability in harsh environments
• Extended thermal performance supporting operation up to +200°C junction temperature

Applications

• Spacecraft avionics and satellite communication systems
• Military radar and electronic warfare signal processing
• High-reliability aerospace instrumentation circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and qualification level. Ensure compliance with export control regulations such as EAR99 when sourcing. Confirm that the component meets the required MIL-PRF-19500/559 standards for your specific application environment before finalizing procurement.

Selection Notes

Select this component when a quad NPN configuration is required in a surface-mount format for high-temperature environments. Compare the 800 mA current rating and 50 V breakdown voltage against circuit requirements. Consider the TO-86-14 package dimensions if board space is constrained. Verify thermal management capabilities given the 400 mW dissipation limit in enclosed assemblies.

Part Context

This part belongs to the JAN series of radiation-hardened and high-reliability semiconductors produced by Microchip. It serves as a ruggedized alternative to commercial grade BJTs, offering superior stability under extreme thermal and radiative conditions typical in defense and space missions.

Replacement Considerations

Direct replacements must match the quad NPN topology and MIL-PRF-19500/559 qualification. Evaluate pin-compatible alternatives only if they maintain identical electrical characteristics and thermal ratings.