BC549B A1G

Single Bipolar Transistors Overview

The BC549B A1G is an NPN silicon small-signal bipolar junction transistor manufactured by Taiwan Semiconductor Corporation. It utilizes a planar epitaxial design and is housed in a TO-92 (TO-226AA) through-hole package with three leads. The device supports a maximum collector current of 100 mA and features a collector-emitter breakdown voltage of 30 V, along with a collector-base voltage rating of 30 V. The emitter-base reverse voltage is rated at 6 V. Power dissipation capability reaches 500 mW, and the component operates within a temperature range from -65 °C to +150 °C.

Single Bipolar Transistors Feature Summary

• NPN polarity configuration for general-purpose switching and amplification applications
• Planar epitaxial silicon construction ensuring stable electrical performance
• Through-hole mounting compatibility via standard TO-92 leaded package

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'A1G' against official manufacturer documentation to confirm exact binning or packaging specifications. Confirm RoHS compliance status directly with the supplier. Ensure the procurement channel provides valid traceability for this discontinued or end-of-life product variant.

Single Bipolar Transistors Selection Notes

Select this component when a low-voltage NPN transistor with moderate gain is required for through-hole designs. Compare hFE ranges against alternative BJT series if higher linearity is needed. Verify thermal management requirements align with the 500 mW dissipation limit in the target enclosure.

Single Bipolar Transistors Part Context

This part belongs to the BC549 series of NPN transistors, which are widely used as general-purpose devices. The 'A1G' suffix typically denotes specific gain grouping and tape-and-reel packaging variations. It serves as a complementary counterpart to PNP devices like the BC559 series in push-pull configurations.

Single Bipolar Transistors Replacement Considerations

BC549B: Direct functional equivalent with identical electrical ratings and pinout. BC548B: Compatible alternative offering similar voltage and current characteristics for general-purpose use.