BC639_D74Z

Single Bipolar Transistors Overview

The BC639_D74Z is an NPN medium power bipolar junction transistor manufactured by onsemi. It features a maximum collector-emitter voltage of 80 V and a continuous collector current rating of 1 A. The device is housed in a TO-92 package with lead frame construction, suitable for through-hole mounting. Key electrical characteristics include a transition frequency of 200 MHz and a maximum power dissipation of 625 mW. The component operates within a junction temperature range up to 150°C and meets RoHS 3 compliance standards.

Single Bipolar Transistors Feature Summary

• High current handling capability with a maximum DC collector current of 1 A
• Low voltage operation optimized for applications requiring up to 80 V collector-emitter breakdown
• Fast switching performance supported by a 200 MHz transition frequency

Single Bipolar Transistors Applications

• General-purpose amplifier circuits
• Switching applications in low-voltage systems
• Driver stages for relay or load control

Single Bipolar Transistors Procurement Notes

Verify the specific suffix D74Z against official manufacturer documentation to confirm lead frame material and packaging configuration. Confirm RoHS 3 compliance status directly from the datasheet. Check product lifecycle notices for end-of-life declarations or alternative part recommendations prior to finalizing procurement plans.

Single Bipolar Transistors Selection Notes

Select this component when a robust NPN transistor is required for moderate power levels up to 625 mW. Ensure the application voltage does not exceed the 80 V collector-emitter limit. Consider the TO-92 package constraints for thermal management and board space. Verify that the 1 A current rating aligns with peak load requirements without exceeding safe operating area limits.

Single Bipolar Transistors Part Context

This part belongs to the BC639 family of NPN medium power transistors produced by onsemi. The family is designed for general-purpose amplification and switching tasks. The D74Z suffix typically denotes specific packaging or reel configurations within the manufacturer's standard distribution channels. These devices are widely used in consumer electronics and industrial control modules.

Single Bipolar Transistors Replacement Considerations

• BC63916-D74Z

Single Bipolar Transistors FAQ

What is the maximum collector-emitter voltage for the BC639_D74Z?

The maximum collector-emitter voltage (Vceo) is rated at 80 V.

Does the BC639_D74Z support surface mount installation?

No, the BC639_D74Z is designed for through-hole installation using a TO-92 package.

What is the transition frequency of this transistor?

The transition frequency (fT) is specified as 200 MHz.