BC548BTFR

Single Bipolar Transistors Overview

The BC548BTFR is an NPN silicon epitaxial planar transistor from the BC546/547/548 series, manufactured by onsemi. It features a collector-emitter voltage (VCEO) of 30V and a continuous collector current (IC) of 100mA. The device has a maximum power dissipation of 625mW at 25°C ambient temperature. It utilizes a TO-92 plastic package with three terminals. The component is lead-free compliant and RoHS directive compliant.

Single Bipolar Transistors Feature Summary

• NPN silicon epitaxial planar construction for general-purpose amplification
• Complementary PNP devices available in the BC556, BC557, and BC558 series
• Lead-free product formulation meeting environmental substance directives

Single Bipolar Transistors Applications

• General purpose amplifier circuits
• Switching applications
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'B' indicates the hFE gain binning class as defined by onsemi datasheets. Confirm the 'TFR' suffix corresponds to the tape and reel packaging format required for automated assembly processes. Ensure the component meets the RoHS compliance standards specified in the official manufacturer documentation.

Single Bipolar Transistors Selection Notes

Select this component when a 30V NPN small-signal transistor with 100mA capability is required. Consider the BC548C variant if higher current gain is needed, or the BC547 variant for 45V operation. Verify that the TO-92 through-hole package fits the PCB layout constraints and thermal management requirements of the design.

Single Bipolar Transistors Part Context

The BC548B is part of the widely used BC546/547/548 family of NPN general-purpose transistors. This series is known for its reliability in low-power analog and digital switching applications. The BC548 specifically offers a 30V breakdown voltage, distinguishing it from the higher-voltage BC546 and intermediate BC547 variants within the same package and pinout configuration.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the BC548B from other manufacturers such as Fairchild Semiconductor or Diotec Semiconductor, provided they meet the same electrical specifications and package dimensions.