BC547TF

Single Bipolar Transistors Overview

The BC547TF is an NPN silicon epitaxial planar transistor manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It is housed in a TO-92 (TO-226AA) through-hole package with three leads. The device features a collector-emitter breakdown voltage of 45 V and a maximum continuous collector current of 100 mA. Key electrical parameters include a transition frequency of 300 MHz, a power dissipation rating of 500 mW, and a minimum DC current gain (hFE) of 420 at 2 mA and 5 V. The component supports a maximum operating junction temperature of 150 °C.

Single Bipolar Transistors Feature Summary

• Designed for general-purpose switching and linear amplifier applications
• Utilizes NPN silicon epitaxial planar construction for reliability
• Provides high-voltage capability suitable for various circuit topologies

Single Bipolar Transistors Applications

• General-purpose signal amplification
• Electronic switching circuits
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin carefully, as Fairchild Semiconductor has been integrated into ON Semiconductor. Ensure the ordering suffix matches the required packaging format, such as tape and reel or bulk, as these do not alter the electrical function but affect handling. Confirm RoHS compliance status based on the specific production batch and revision level documented in the official datasheet.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN transistor with 45 V collector-emitter voltage and 100 mA current capacity is required. The high hFE grade ensures effective amplification with low base drive current. Consider the TO-92 package constraints for thermal management and PCB space. Verify that the 300 MHz transition frequency meets the signal bandwidth requirements of the target application.

Single Bipolar Transistors Part Context

The BC547TF belongs to the widely used BC547 series of small-signal NPN transistors. This series is standardized across multiple manufacturers including Fairchild, ON Semiconductor, and NXP. The 'TF' suffix typically denotes a specific binning grade for current gain and packaging configuration within the manufacturer's product line.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include BC547B, BC547C, and BC547CT from ON Semiconductor or other vendors. Cross-manufacturer equivalents such as 2N3904 may be considered if voltage ratings align, though pinouts and gain characteristics should be verified against the original design specifications.