BC638G

Single Bipolar Transistors Overview

The BC638G is a PNP silicon epitaxial planar transistor manufactured by onsemi in a TO-92 package. It features a maximum collector-emitter voltage of -60 Vdc and continuous collector current of -0.5 Adc. The device offers a DC current gain ranging from 25 to 160 at specific test conditions, with a transition frequency of 150 MHz. Thermal resistance junction-to-ambient is 200 °C/W, supporting operation within a temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration for medium power applications
• Lead-free packaging compliant with environmental standards
• High current capability up to 0.5 A continuous collector current

Single Bipolar Transistors Applications

• General purpose switching circuits
• Linear amplifier stages
• Driver applications requiring PNP control

Single Bipolar Transistors Procurement Notes

Verify the ordering suffix G indicates lead-free status per manufacturer documentation. Confirm package type matches TO-92 requirements. Check datasheet revision D for updated electrical characteristics. Ensure thermal management aligns with specified derating curves. Validate component authenticity through authorized distribution channels.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with 60 V breakdown and 0.5 A current rating is required. Consider the TO-92 package for through-hole mounting constraints. Evaluate thermal performance against ambient operating conditions using provided derating factors. Compare hFE ranges against circuit gain requirements for signal amplification or switching efficiency.

Single Bipolar Transistors Part Context

This part belongs to the BC638 series of high current PNP transistors produced by onsemi. It shares specifications with the standard BC638 but includes specific ordering attributes. The series is designed for general-purpose use in consumer electronics and industrial equipment requiring reliable bipolar junction transistor performance.

Single Bipolar Transistors Replacement Considerations

BC640 serves as a higher voltage variant within the same family. Verify pinout compatibility before substitution. Electrical parameters must match application requirements closely.