FJY3002R

Overview

The FJY3002R is an NPN epitaxial silicon transistor manufactured by Fairchild Semiconductor. It features built-in bias resistors with a ratio of 1:1, specifically R1 = 10 kΩ and R2 = 10 kΩ. The device supports a maximum collector current (IC) of 100 mA and a collector-emitter voltage (VCEO) of 40 V. It is housed in a TO-92S package with three pins. The component is RoHS compliant and designed for space-saving applications by reducing external component counts.

Feature Summary

• Integrated bias resistor network simplifies circuit design
• High output current capability for switching applications
• Single NPN configuration with built-in resistance

Applications

• Switching circuits
• Interface circuits
• Driver circuits
• Inverters
• Digital applications in industrial segments

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or its successor entity ON Semiconductor. Confirm the specific suffix 'R' indicates the reel packaging format if required for surface mount assembly processes. Ensure the RoHS compliance status matches current regulatory requirements for the target market. Cross-reference the pinout configuration to ensure compatibility with existing PCB footprints.

Selection Notes

Select this component when a compact NPN transistor solution with integrated base and emitter resistors is required. The 100 mA current rating suits moderate load switching tasks. The fixed 10 kΩ resistor values are optimal for standard logic level interfacing where precise biasing networks are unnecessary. Consider the TO-92S package constraints for thermal management and physical space availability on the board.

Part Context

This part belongs to the FJY series of bias resistor-built-in transistors from Fairchild Semiconductor. These devices are engineered to replace discrete resistor-transistor combinations, thereby reducing board space and assembly costs. The FJY3002R serves as a complement to other variants in the family, offering specific electrical characteristics tailored for general-purpose digital switching and interface roles.

Replacement Considerations

Direct substitutes include the FJN3301R and FJN3307R, which share similar bias resistor configurations. Verify that alternative parts maintain the same 100 mA current rating and 40 V voltage specifications to ensure functional equivalence in existing designs.