BC548TA

Single Bipolar Transistors Overview

The BC548TA is an NPN epitaxial silicon small-signal bipolar junction transistor manufactured by onsemi. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 30 V. The device operates with a power dissipation of 500 mW and supports a transition frequency up to 300 MHz. It utilizes a TO-92-3 kinked lead through-hole package and offers a minimum DC current gain (hFE) of 420.

Single Bipolar Transistors Feature Summary

• NPN epitaxial silicon construction for reliable signal amplification
• High DC current gain suitable for sensitive low-level applications
• Lead-free composition compliant with environmental directives

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Small-signal amplifier stages
• Audio pre-amplification systems

Single Bipolar Transistors Procurement Notes

Verify the specific hFE binning classification, as the BC548 series includes multiple gain grades. Confirm the package variant matches the required lead configuration. Ensure compliance with RoHS standards if applicable to the target market. Cross-reference datasheets from authorized distributors to validate electrical parameters against design requirements.

Single Bipolar Transistors Selection Notes

Select this component when high current gain is required for low-noise amplification. Compare alternative gain bins if lower amplification suffices for cost optimization. Verify thermal management capabilities within the 500 mW dissipation limit. Ensure the TO-92 package fits the mechanical constraints of the printed circuit board layout.

Single Bipolar Transistors Part Context

This part belongs to the BC546–BC550 series of general-purpose NPN transistors. It serves as a complementary device to the PNP BC558. The series is widely used in consumer electronics and industrial control due to its standardized performance and availability across multiple manufacturers.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include BC548BTA and BC548CTA from onsemi. Other manufacturers offer equivalent parts such as BC548BU or generic BC548 variants. Verify pinout compatibility and electrical parameter overlap before substitution.