BC549CTFR

Single Bipolar Transistors Overview

The onsemi BC549CTFR is an NPN epitaxial silicon planar transistor housed in a TO-92 package. It features a maximum collector-emitter voltage of 30V and a continuous collector current of 100mA, with a power dissipation rating of 500mW. The device offers a DC current gain (hFE) range of 110 to 800, ensuring high amplification capabilities for small signal applications. It includes a low noise characteristic suitable for sensitive circuits. The component operates within a junction temperature range up to 150°C and is designed as a lead-free product compliant with environmental directives.

Single Bipolar Transistors Feature Summary

• NPN epitaxial silicon planar construction
• Low noise performance for sensitive circuits
• Lead-free design compliant with environmental standards

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific suffix CTFR against official datasheets to confirm tape and reel packaging specifications. Ensure the manufacturer designation matches onsemi documentation. Confirm RoHS compliance status through the latest regulatory declarations provided by the supplier.

Single Bipolar Transistors Selection Notes

Select this component when a 30V NPN transistor with moderate current handling is required. The wide hFE range allows flexibility in biasing designs. Consider thermal management for the TO-92 package if operating near maximum power dissipation limits.

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 BC559 series. The series is widely used in consumer electronics and industrial control circuits due to its reliability and standard pinout configuration.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include BC549B and BC549C from other manufacturers. Verify pinout compatibility and electrical parameter overlaps before substitution.