JANSH2N2221AUA

Single Bipolar Transistors Overview

The JANSH2N2221AUA is a silicon NPN small-signal bipolar junction transistor (BJT) manufactured by Microchip Technology, formerly Microsemi. Designed for high-reliability applications, this component operates with a collector-emitter voltage of 50V and a continuous collector current of 800mA. It features a maximum power dissipation of 650mW at room temperature. The device utilizes a surface-mount technology (SMT) package configuration, specifically the SOT-23 form factor, suitable for automated assembly processes in demanding electronic environments.

Single Bipolar Transistors Feature Summary

• Hermetically sealed construction designed to withstand harsh environmental conditions
• Qualified under MIL-PRF-19500 standards for aerospace and defense sectors
• Optimized for low-noise performance in sensitive signal processing circuits

Single Bipolar Transistors Applications

• Military communication systems requiring radiation-hardened components
• Aviation avionics and flight control electronics
• Spacecraft telemetry and data handling subsystems

Single Bipolar Transistors Procurement Notes

Verify export compliance requirements prior to purchase, as this item may require additional documentation for international shipment from the United States. Confirm that the specific suffix matches the required hermetic seal and qualification level. Ensure compatibility with existing PCB footprints and soldering profiles for surface-mount assembly. Validate that the supplier provides traceable certificates of conformity.

Single Bipolar Transistors Selection Notes

Select this component when radiation tolerance and long-term reliability are critical design constraints. Compare against standard commercial grade transistors to ensure the higher cost aligns with mission-critical requirements. Verify that the 50V rating sufficiently exceeds the maximum operating voltage in the target circuit. Consider thermal management strategies given the 650mW power dissipation limit in compact surface-mount packages.

Single Bipolar Transistors Part Context

This part belongs to the JAN series of high-reliability semiconductors produced by Microsemi. The JAN prefix indicates qualification under strict military specifications, distinguishing it from commercial variants. These devices are engineered for extended operational lifespans in environments where standard components would fail due to radiation exposure or extreme temperature fluctuations.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other JAN-qualified NPN transistors such as JAN2N2221AUA. Verify pinout compatibility and electrical parameters before substitution. Non-JAN equivalents like standard 2N2221A lack hermetic sealing and radiation hardness.