BC556TFR

Single Bipolar Transistors Overview

The BC556TFR is a PNP silicon epitaxial planar transistor manufactured by onsemi, designed for switching and audio frequency amplifier applications. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 65 V. The device operates within a junction temperature range up to +150°C and dissipates up to 500 mW of power. Key electrical characteristics include a transition frequency of 150 MHz and a DC current gain (hFE) minimum of 200 at 2 mA and 5 V. It is housed in a TO-92-3 package with kinked leads for through-hole mounting.

Single Bipolar Transistors Feature Summary

• PNP silicon epitaxial construction optimized for general-purpose switching and audio frequency amplification tasks.
• High thermal stability supporting operation at junction temperatures up to +150°C.
• Robust current handling capability with a continuous collector current rating of 100 mA.

Single Bipolar Transistors Applications

• General-purpose signal switching circuits
• Audio frequency amplifier stages
• Low-power logic interface buffers

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'TFR' against official onsemi documentation to confirm packaging configuration, as variations exist between reel and cut-tape formats. Confirm component status, as certain manufacturing runs may be subject to end-of-life notices or obsolescence. Ensure compatibility with RoHS directives if required by the target assembly process.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with a 65 V collector-emitter breakdown voltage is required for low-current applications. The 150 MHz transition frequency supports moderate-speed switching needs. Verify that the TO-92-3 through-hole package fits the mechanical constraints of the printed circuit board design.

Single Bipolar Transistors Part Context

This part belongs to the BC556 series of PNP transistors, which are widely used in consumer electronics and industrial control systems. The series is characterized by high current gain and reliable performance in small-signal applications. The BC556TFR specifically denotes the standard plastic encapsulated version intended for automated or manual through-hole insertion.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the BC556BTA and BC556BTF from onsemi. These alternatives share identical electrical specifications and pinout configurations, allowing for direct replacement in existing designs without circuit modification.