BC640,112

Single Bipolar Transistors Overview

The BC640,112 is a PNP medium power transistor manufactured by NXP Semiconductors. It operates within a collector-emitter voltage (VCEO) of up to 80 V and supports a continuous DC collector current (IC) of 1 A. The device features a peak collector current (ICM) rating of 1.5 A and a total power dissipation (Ptot) of 0.83 W at an ambient temperature of 25 °C. It utilizes a TO-92 plastic package with three leads. Key electrical characteristics include a minimum DC current gain (hFE) of 63 at IC = -150 mA and a transition frequency (fT) of 100 MHz.

Single Bipolar Transistors Feature Summary

• High current handling capability supporting up to 1 A continuous operation
• Low voltage design optimized for applications requiring up to 80 V collector-emitter ratings
• Complementary pairing available with NPN transistors such as the BC635, BC637, and BC639

Single Bipolar Transistors Applications

• Audio amplifiers
• Video amplifiers

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and compliance status. Ensure the component matches the required thermal resistance values for the intended PCB layout. Confirm that the sourcing channel provides original manufacturer packaging to prevent counterfeit components. Cross-reference the datasheet revision date with the production batch information provided by the supplier.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring a PNP transistor with high current capacity and moderate voltage ratings. Consider the complementary BC63x series if matched pairs are necessary for push-pull configurations. Evaluate the thermal resistance from junction to ambient to ensure adequate heat dissipation in the chosen enclosure. Verify that the operating temperature range aligns with the environmental conditions of the final assembly.

Single Bipolar Transistors Part Context

The BC640 belongs to a family of PNP medium power transistors produced by Philips Semiconductors, now NXP. It is designed for general-purpose switching and amplification tasks. The device is housed in a standard TO-92 plastic package, facilitating through-hole mounting on printed-circuit boards. Its specifications make it suitable for driving loads in consumer electronics and industrial control systems where reliable medium-power performance is required.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the BC640 from other manufacturers such as ON Semiconductor or Motorola. Complementary NPN equivalents like the BC635 can be used in paired designs. Verify pinout compatibility and absolute maximum ratings before substitution.