BC547A

Single Bipolar Transistors Overview

The Diotec Semiconductor BC547A is a general-purpose NPN silicon epitaxial transistor housed in a TO-92 package. It features a collector-emitter voltage (VCEO) of 45 V and a maximum DC collector current (IC) of 100 mA. The device belongs to the Group A current gain category, providing a minimum hFE of 110 at IC = 2 mA and VCE = 5 V. Power dissipation is rated at 500 mW, with an operating junction temperature range from -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• General-purpose NPN transistor suitable for commercial and industrial applications
• Three distinct current gain groups available for precise amplification requirements
• Compliant with RoHS directives without exemptions and REACH regulations

Single Bipolar Transistors Applications

• Signal processing circuits
• Electronic switching applications
• Amplification stages

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix when purchasing. Standard versions are supplied in ammo packs. Suffixes such as -Q indicate AEC-Q101 compliance, while -AQ denotes qualification status. Confirm that the component meets the required automotive or commercial reliability standards before finalizing procurement specifications.

Single Bipolar Transistors Selection Notes

Select the BC547A when a low-voltage NPN switch or amplifier is needed. The 'A' suffix designates the lowest gain group within the BC547 series, ensuring consistent performance for basic signal handling tasks. Ensure the application operates within the 45 V collector-emitter limit and does not exceed the 100 mA continuous current rating.

Single Bipolar Transistors Part Context

This component is part of the BC546 through BC549 family of universal NPN transistors manufactured by Diotec Semiconductor. These devices share similar physical dimensions and electrical characteristics but differ primarily in their breakdown voltages and current gain groupings. The BC547 variant specifically targets applications requiring moderate voltage tolerance.

Single Bipolar Transistors Replacement Considerations

BC547B

Single Bipolar Transistors FAQ

What is the minimum DC current gain for the BC547A?

The minimum DC current gain (hFE) for the BC547A is 110, measured at a collector current of 2 mA and a collector-emitter voltage of 5 V.

Is the BC547A compliant with automotive standards?

Standard BC547A components are designed for commercial and industrial use. Automotive-grade versions are available only with specific suffixes indicating AEC-Q101 compliance or qualification.