BC549BTFR

Single Bipolar Transistors Overview

The onsemi BC549BTFR is an NPN epitaxial silicon planar transistor housed in a lead-free TO-92 package. It features a collector-emitter voltage (VCEO) of 30V and a maximum DC collector current (IC) of 100mA. The device offers a minimum DC current gain (hFE) of 200 at IC=2mA and VCE=5V, with a typical current gain bandwidth product (fT) of 300MHz. Power dissipation is rated at 500mW, and the junction temperature range extends from -65°C to +150°C.

Single Bipolar Transistors Feature Summary

• Low noise performance suitable for sensitive signal amplification
• Complementary PNP availability within the same series family
• Lead-free construction compliant with environmental directives

Single Bipolar Transistors Applications

• General purpose small signal amplification
• Audio pre-amplifier stages
• Switching circuits requiring low voltage operation

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'BTF' against official onsemi documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact electrical binning requirements for your design. Cross-reference with authorized distributors to validate authenticity and traceability before procurement.

Single Bipolar Transistors Selection Notes

Select this component when a 30V NPN transistor with high current gain (minimum 200) is required. Consider the TO-92 package constraints for thermal management. Evaluate the complementary BC559 for matched PNP applications. Verify that the 100mA current limit meets the circuit's peak load demands.

Single Bipolar Transistors Part Context

This device belongs to the BC546-BC550 series of general-purpose NPN transistors. It shares mechanical dimensions with similar industry-standard parts but maintains specific onsemi electrical characteristics. The series is widely used in consumer electronics and industrial control applications due to its reliability and cost-effectiveness.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include BC549BTA and BC549BD75Z. Verify pinout compatibility and electrical parameter margins before substitution. Ensure the replacement part meets the same voltage and current ratings.