BC517_D27Z

Single Bipolar Transistors Overview

The BC517_D27Z is an NPN Darlington transistor manufactured by onsemi, housed in a TO-92 three-pin through-hole package. It features a maximum collector-emitter voltage of 30 V and a continuous collector current rating of 1.2 A. The device offers a minimum DC current gain (hFE) of 30,000, making it suitable for high-gain amplification applications. Power dissipation is rated at 625 mW, with an operating temperature range spanning from -50 °C to +150 °C.

Single Bipolar Transistors Feature Summary

• NPN Darlington configuration providing very high DC current gain
• Capable of handling high collector currents up to 1.2 A
• Designed for low-voltage operation with a 30 V collector-emitter breakdown

Single Bipolar Transistors Applications

• High-gain amplifier circuits requiring significant signal amplification
• Switching applications where high input impedance is beneficial
• Driver stages for relays or other load control mechanisms

Single Bipolar Transistors Procurement Notes

Verify the specific suffix D27Z against official onsemi documentation to confirm reel packaging specifications and exact manufacturing lot details. Ensure compatibility with existing PCB footprints for the TO-92 package. Cross-reference datasheets from authorized distributors to confirm current availability status and lead times, as component lifecycles may change.

Single Bipolar Transistors Selection Notes

Select this component when circuit design demands extremely high current gain combined with moderate current handling capabilities. The TO-92 package suits through-hole assembly processes. Compare performance metrics such as saturation voltage and transition frequency against alternative Darlington transistors if specific switching speed or power efficiency constraints exist within the application environment.

Single Bipolar Transistors Part Context

This part belongs to the BC517 series of NPN Darlington transistors produced by onsemi. The series is characterized by its high current gain and robust construction for general-purpose switching and amplification tasks. The D27Z suffix typically denotes specific packaging or tape-and-reel configurations used in automated assembly lines.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include the BC516 (PNP complement), MPSA13, and 2N5306. Verify pinout compatibility and electrical ratings such as VCEO and ICmax before substitution to ensure circuit integrity.