BC548ATF

Single Bipolar Transistors Overview

The onsemi BC548ATF is an NPN silicon planar epitaxial transistor housed in a lead-free TO-92 package. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 30 V. The device supports a junction temperature up to 150°C and offers a minimum DC current gain (hFE) of 110. Designed for general-purpose amplification, it operates within a temperature range of -55°C to 150°C.

Single Bipolar Transistors Feature Summary

• NPN silicon planar epitaxial construction
• Lead-free compliant packaging
• High thermal stability with 150°C junction limit

Single Bipolar Transistors Applications

• General-purpose signal amplification
• Switching circuits
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'ATF' against official onsemi documentation to confirm binning or tape-and-reel specifications. Ensure the component matches the required hFE grade and that the TO-92 package aligns with the target PCB footprint. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar variants.

Single Bipolar Transistors Selection Notes

Select this component for low-power NPN switching and amplification tasks requiring standard TO-92 through-hole mounting. Consider the 30V breakdown voltage and 100mA current limits when designing the circuit. Verify that the minimum hFE of 110 meets the gain requirements for the intended application stage.

Single Bipolar Transistors Part Context

This component belongs to the BC548 series of small-signal NPN transistors. It shares the same physical package and basic electrical ratings as other BC548 variants but may differ in gain classification or packaging format. The series is widely used in consumer electronics and industrial control applications for basic signal processing.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include the BC548B, BC548C, and generic equivalents like 2N3904 if voltage and current ratings are sufficient. Verify pinout compatibility and ensure the replacement part meets the same thermal and electrical specifications.