BC547B A1G

Single Bipolar Transistors Overview

The BC547B A1G is an NPN silicon epitaxial planar transistor manufactured by Taiwan Semiconductor Corporation. It is designed for general-purpose amplifier and switching applications within the BC547 series family. The device features a maximum collector current of 100 mA and a collector-emitter breakdown voltage of 30 V. It utilizes a TO-92 (TO-226AA) through-hole package with three pins. The component exhibits a minimum DC current gain (hFE) of 200 at a collector current of 2 mA and a collector-emitter voltage of 5 V, ensuring reliable performance in low-power signal processing tasks.

Single Bipolar Transistors Feature Summary

• NPN silicon epitaxial planar construction for stable amplification
• High DC current gain classification for sensitive signal handling
• Through-hole TO-92 packaging for standard board integration

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer designation as Taiwan Semiconductor Corporation against the physical marking on the component body. Confirm the suffix 'A1G' corresponds to the intended hFE binning and RoHS compliance status required for the assembly. Cross-reference the datasheet pinout configuration to ensure compatibility with the target PCB footprint before finalizing procurement orders.

Single Bipolar Transistors Selection Notes

Select this component when a 30 V collector-emitter voltage rating is sufficient for the circuit design, distinguishing it from higher-voltage variants like the BC547C or BC546. The specified hFE range suits applications requiring moderate amplification without excessive gain variability. Ensure the thermal dissipation requirements remain within the 500 mW limit defined for the TO-92 package under standard operating conditions.

Single Bipolar Transistors Part Context

This part belongs to the widely utilized BC547 series of NPN transistors, originally standardized by Philips. The series includes complementary PNP devices and variants with different voltage ratings. The BC547B variant specifically targets applications needing a mid-range current gain, bridging the gap between lower-gain A types and high-gain C types within the same physical form factor.

Single Bipolar Transistors Replacement Considerations

Equivalent parts include the BC547B from other manufacturers such as ON Semiconductor or Fairchild, provided the pinout matches the C-B-E configuration typical of the BC547 series. Verify that substitute components meet the identical 30 V VCEO and 100 mA IC specifications.