BC547TA

Single Bipolar Transistors Overview

The BC547TA is an NPN silicon epitaxial planar transistor manufactured by onsemi, designed for general-purpose switching and amplifier applications. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 45 V. The device utilizes a TO-92 (TO-226AA) three-pin through-hole package with a cylindrical plastic/epoxy body. Key electrical specifications include a minimum DC current gain (hFE) of 110 at 2 mA and 5 V, a transition frequency of 1 MHz, and a maximum power dissipation of 500 mW. The operating temperature range extends from -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• NPN silicon epitaxial planar construction for reliable small-signal performance
• General-purpose design suitable for both switching and linear amplifier circuits
• Through-hole TO-92 package configuration for standard board mounting

Single Bipolar Transistors Applications

• General-purpose signal amplification in audio and RF stages
• Low-frequency switching operations in digital logic interfaces
• Biasing networks within transistor-based circuit topologies

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'TA' against official onsemi documentation to confirm exact binning or packaging variations, as generic BC547 datasheets may not detail this specific variant's unique attributes. Ensure the component matches the required hFE grade and package type for your design. Cross-reference with authorized distributors to confirm current availability and authenticity, as older part numbers may have limited stock or be subject to obsolescence notices.

Single Bipolar Transistors Selection Notes

Select the BC547TA when a standard NPN small-signal transistor with moderate voltage ratings is required. It serves as a direct replacement for other BC547 variants within the same family, provided the hFE gain band meets the circuit requirements. Consider the TO-92 package constraints for thermal management and physical space. Verify that the 45V breakdown voltage is sufficient for the intended application's supply rails.

Single Bipolar Transistors Part Context

The BC547 series comprises NPN silicon transistors widely used in consumer electronics and industrial equipment. Manufactured by onsemi, these devices are part of a long-standing lineup known for cost-effectiveness and reliability. The BC547TA specifically denotes a particular manufacturing lot or gain classification within this broader family, sharing core electrical characteristics with other BC547 models while potentially differing in gain distribution or packaging details.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include BC547B, BC547C, and BC547RL from onsemi, which share identical pinouts and basic electrical limits but may offer different hFE gain ranges. Other compatible equivalents from manufacturers like Fairchild or NXP can be considered if they meet the 100mA current and 45V voltage specifications.