BC546A

Single Bipolar Transistors Overview

The Diotec Semiconductor BC546A is a general-purpose NPN bipolar junction transistor (BJT) housed in a TO-92 through-hole package. It features a collector-emitter breakdown voltage of 65 V, a maximum continuous collector current of 100 mA, and a power dissipation rating of 500 mW. The device offers three DC current gain groups, with the 'A' suffix indicating a minimum hFE of 110 at IC = 2 mA and VCE = 5 V. It operates within a junction temperature range of -55°C to +150°C and includes a transition frequency of 300 MHz.

Single Bipolar Transistors Feature Summary

• General-purpose NPN transistor suitable for universal signal processing, switching, and amplification applications
• Three distinct current gain groups available to accommodate varying circuit requirements
• Compliant with RoHS directives without exemptions and adheres to REACH regulations

Single Bipolar Transistors Applications

• Signal processing circuits
• Electronic switching applications
• Amplification stages

Single Bipolar Transistors Procurement Notes

Verify that the ordered component matches the exact manufacturer part number BC546A from Diotec Semiconductor. Confirm the package type is TO-92 and ensure compliance with specific project requirements regarding commercial or industrial grade reliability standards before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN BJT with a 65 V collector-emitter voltage rating is required. The BC546A is appropriate for low-power applications needing moderate current handling up to 100 mA. Ensure the design accommodates the specified thermal resistance and power dissipation limits under expected operating conditions.

Single Bipolar Transistors Part Context

This component belongs to the BC546...BC549 series of general-purpose NPN transistors manufactured by Diotec Semiconductor. The series provides standardized performance characteristics across different voltage ratings and gain groupings, facilitating consistent design practices for common electronic circuits requiring reliable small-signal amplification and switching capabilities.

Single Bipolar Transistors Replacement Considerations

BC547A, BC548A, BC549A

Single Bipolar Transistors FAQ

What does the 'A' suffix indicate for the BC546A?

The 'A' suffix denotes a specific DC current gain group, guaranteeing a minimum hFE of 110 at IC = 2 mA and VCE = 5 V.

Is the BC546A suitable for automotive applications?

Standard BC546A units are commercial/industrial grade. Automotive-grade versions require specific suffixes such as '-Q' (AEC-Q101 compliant) or '-AQ' (in qualification).

What is the maximum collector-emitter voltage for the BC546A?

The maximum collector-emitter voltage (VCEO) with the base open is 65 V.