BC639-10-BP

Single Bipolar Transistors Overview

The BC639-10-BP is an NPN epitaxial silicon transistor in a TO-92 package. It supports a maximum collector current of 1 A and a collector-emitter voltage of 80 V, with a power dissipation rating of 1 W at 25°C. The device features a transition frequency of 100 MHz. The BC639-10 variant specifies a DC current gain (hFE) range of 100 to 250 when tested at VCE=2V and IC=150mA.

Single Bipolar Transistors Feature Summary

• NPN medium-power configuration suitable for general-purpose amplification and switching applications
• RoHS compliant lead-free finish designated by the 'P' suffix
• Epoxy casing meets UL 94 V-0 flammability rating

Single Bipolar Transistors Applications

• General-purpose amplifier circuits
• Electronic switching applications
• Driver stages for low-power loads

Single Bipolar Transistors Procurement Notes

Verify that the ordering suffix matches the required packaging format, as the BP suffix indicates bulk packing. Confirm RoHS compliance status if environmental regulations apply. Ensure the specific hFE bin corresponds to circuit requirements, as gain varies between device variants within the same family.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring moderate current handling up to 1 A with standard voltage ratings. Consider the thermal resistance of 125°C/W when calculating heat dissipation in ambient conditions. Verify that the TO-92 through-hole package aligns with the target PCB layout constraints.

Single Bipolar Transistors Part Context

This part belongs to the BC639 series of NPN transistors manufactured by Micro Commercial Components. The series includes variants with different gain ranges, such as the BC639-16. The device utilizes a standard three-terminal TO-92 plastic encapsulation designed for through-hole mounting on printed circuit boards.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other BC639 variants from different manufacturers or the BC637 and BC635 series, provided their electrical ratings meet the application's voltage and current requirements.