BC33725TFR

Single Bipolar Transistors Overview

The Fairchild Semiconductor BC33725TFR is an NPN silicon epitaxial planar transistor designed for switching and audio frequency amplifier applications. It features a maximum DC collector current of 800 mA and a collector-emitter voltage rating of 45 V. The device utilizes a TO-92 three-pin through-hole package with kinked leads, suitable for general-purpose circuit integration. Key electrical characteristics include a transition frequency of 100 MHz and a power dissipation capacity of 625 mW at 25°C ambient temperature.

Single Bipolar Transistors Feature Summary

• Epitaxial planar silicon construction for reliable switching performance
• High DC current gain grouping for consistent amplification characteristics
• Through-hole mounting configuration with kinked leads for secure PCB installation

Single Bipolar Transistors Applications

• General purpose signal amplification circuits
• Audio frequency amplifier stages
• Electronic switching applications

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin carefully as this part number may be sourced from various distributors or legacy stock. Confirm RoHS compliance status and specific binning grades (hFE range) against your design requirements before ordering. Check for potential obsolescence notices or lifecycle changes associated with Fairchild Semiconductor assets transferred to onsemi.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN transistor with moderate current handling and high gain is required for through-hole designs. Ensure the operating voltage does not exceed the 45 V collector-emitter limit. Consider thermal management if continuous operation approaches the 625 mW power dissipation limit in enclosed environments.

Single Bipolar Transistors Part Context

This device belongs to the BC337 series of NPN transistors, widely used in consumer electronics and industrial control systems. The '25' suffix typically denotes a specific DC current gain bin, ensuring tighter performance tolerances compared to standard variants. The TFR suffix indicates tape and reel packaging for automated assembly processes.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include the BC337-25BU and BC337-25G from other manufacturers such as onsemi or STMicroelectronics. Verify pinout compatibility and ensure equivalent hFE gain ranges are maintained for direct replacement in existing amplifier or switching circuits.