JANSR2N2221AUA

Single Bipolar Transistors Overview

The JANSR2N2221AUA is a military-grade NPN small-signal bipolar junction transistor manufactured by Microchip Technology. It features a collector-emitter voltage rating of 50V and a continuous collector current capacity of 800mA. The device supports a maximum power dissipation of 650mW. Designed for surface-mount applications, it utilizes a leadless 4-SMD package configuration. This component belongs to the MIL-PRF-19500/255 qualified series, ensuring reliability in demanding environments.

Single Bipolar Transistors Feature Summary

• Qualified under MIL-PRF-19500/255 standards for military reliability
• Surface-mount leadless package design for compact integration
• NPN polarity with small-signal switching capabilities

Single Bipolar Transistors Applications

• Military electronic systems requiring radiation-hardened or high-reliability components
• Avionics signal processing circuits
• Defense communication equipment interfaces

Single Bipolar Transistors Procurement Notes

Verify that the specific ordering suffix matches the required package variant and qualification level. Confirm that the supplier provides traceability documentation consistent with military procurement standards. Ensure storage conditions comply with moisture sensitivity requirements prior to assembly. Cross-reference the manufacturer part number against the latest datasheet revision to confirm pinout and electrical characteristics match the design specifications.

Single Bipolar Transistors Selection Notes

Select this component when a surface-mount NPN transistor with 50V blocking capability is required for space-constrained designs. The 800mA current rating suits moderate load switching applications. Consider the leadless package footprint during PCB layout planning. Verify thermal management strategies align with the 650mW dissipation limit in the chosen enclosure environment.

Single Bipolar Transistors Part Context

This transistor is part of Microchip's portfolio of specialized discrete semiconductors targeting defense and aerospace sectors. It serves as a ruggedized alternative to commercial-grade BJTs, offering enhanced durability against environmental stressors. The device complements other components in high-assurance circuit designs where standard industrial parts may not meet longevity or performance criteria.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include JANSD2N2221AUA and JANSL2N2221AUBC from the same manufacturer family. These variants share similar electrical ratings but differ in package type or specific qualification nuances. Verify pin compatibility and thermal resistance values before substitution.