BC548A A1G

Single Bipolar Transistors Overview

The BC548A A1G is an NPN silicon small-signal bipolar junction transistor manufactured by Taiwan Semiconductor Corporation. It features a collector-emitter breakdown voltage of 30V and a maximum continuous collector current of 100mA. The device provides a minimum DC current gain (hFE) of 110 at a collector current of 2mA and Vce of 5V. It operates within a junction temperature range of -65°C to 150°C and dissipates up to 500mW of power. The component is housed in a TO-92-3 through-hole package.

Single Bipolar Transistors Feature Summary

• NPN epitaxial silicon planar design for general-purpose switching and amplification
• High DC current gain with a minimum hFE of 110 under standard test conditions
• Robust thermal performance supporting a wide operating junction temperature range
• Lead-free construction compliant with RoHS directives

Single Bipolar Transistors Applications

• General-purpose signal amplification circuits
• Electronic switching applications
• Audio pre-amplifier stages
• Driver circuits for low-power loads

Single Bipolar Transistors Procurement Notes

Verify the specific suffix A1G against the manufacturer's official datasheet to confirm pinout orientation and binning specifications. Confirm end-of-life status or availability directly with Taiwan Semiconductor, as distribution channels may vary. Ensure the procurement documentation explicitly states compliance with RoHS and REACH regulations required for your assembly process.

Single Bipolar Transistors Selection Notes

Select this component when a 30V NPN transistor with moderate current handling is required. The 'A' suffix indicates a specific gain bin starting at 110; verify if higher gain variants like 'B' or 'C' are needed for precision analog applications. Ensure the TO-92 package fits the PCB footprint and that the 500mW power dissipation rating suits the thermal environment of the final design.

Single Bipolar Transistors Part Context

This part belongs to the BC548 series of NPN transistors, widely used in consumer electronics and industrial control. The BC548 family is often paired with its PNP complement, the BC558. The BC548A variant specifically targets applications requiring guaranteed minimum gain without the tighter tolerances of higher letter grades.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include BC548A from other manufacturers such as Diotec Semiconductor or Micro Commercial Components. Cross-brand replacements must match the 30V Vceo, 100mA Ic, and TO-92 package constraints.