JANSR2N2222AUBC

Single Bipolar Transistors Overview

The JANSR2N2222AUBC is a radiation-hardened NPN silicon switching transistor manufactured by Microchip Technology. It belongs to the JANS qualification system, designed for high-reliability aerospace and defense applications requiring resistance to total ionizing dose effects up to 100 krad(Si). The device utilizes a hermetic ceramic surface-mount package (UBC) to ensure environmental stability. Key electrical characteristics include a collector-emitter voltage of 50 V and a continuous collector current of 800 mA, with a maximum power dissipation of 500 mW.

Single Bipolar Transistors Feature Summary

• Qualified to MIL-PRF-19500/255 Level R for radiation hardness up to 100 krad(Si)
• Hermetic ceramic surface-mount construction for harsh environment reliability
• Silicon planar technology optimized for high-speed switching applications

Single Bipolar Transistors Applications

• Aerospace satellite communication systems
• Military radar signal processing circuits
• High-reliability avionics control modules

Single Bipolar Transistors Procurement Notes

Verify the specific JANSR radiation qualification level against mission requirements before procurement. Confirm that the UBC ceramic package form factor matches the PCB footprint design. Ensure supply chain sources provide appropriate lot traceability documentation required for defense contracts. Check for any recent PCN updates regarding assembly sites or material changes.

Single Bipolar Transistors Selection Notes

Select this component when radiation tolerance exceeding standard commercial levels is mandatory. The UBC package offers a compact surface-mount solution compared to traditional TO-18 cans. Compare thermal resistance values in the datasheet against heat sink capabilities if operating near maximum power limits. Ensure circuit biasing remains within the safe operating area defined for high-temperature operation.

Single Bipolar Transistors Part Context

This part is part of the 2N2222 family of NPN transistors, specifically hardened for space environments. Unlike commercial variants, the JANSR version undergoes strict screening and testing per MIL-PRF-19500 specifications. It serves as a direct replacement for other JANS qualified devices in legacy military designs requiring surface-mount integration.

Single Bipolar Transistors Replacement Considerations

Substitute only with other JANSR2N2222AUBC units from authorized manufacturers. Verify pinout compatibility with existing board layouts. Do not replace with non-radiation-hardened equivalents without rigorous environmental testing.