BC817K-40-TP

Overview

The BC817K-40-TP is an NPN silicon general-purpose transistor manufactured by Micro Commercial Components (MCC). It belongs to the BC817 series and features a SOT-323 surface-mount package. Key electrical specifications include a maximum collector-emitter voltage of 45V, a maximum collector-base voltage of 50V, and a maximum emitter-base voltage of 5V. The device supports a continuous collector current of 500mA with a power dissipation rating of 200mW. It offers a DC current gain range from 100 to 600 at 1V and 100mA, and a transition frequency of 100MHz. Operating temperatures span from -55°C to +150°C.

Feature Summary

• NPN silicon construction for general-purpose switching and amplification
• SOT-323 compact surface-mount packaging
• High DC current gain ranging from 100 to 600
• Qualified for automotive applications under AEC-Q101 standards

Applications

• General audio frequency amplification circuits
• Low-power switching applications
• Automotive electronic systems requiring AEC-Q101 qualification

Procurement Notes

Verify the specific suffix 'TP' against official MCC documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering part number matches the exact voltage and gain binning requirements. Cross-reference the manufacturer's latest datasheet for any updates on pinout configuration or thermal characteristics before finalizing procurement.

Selection Notes

Select this component when a small-form-factor NPN transistor with moderate current handling is required. The SOT-323 package suits space-constrained designs. Verify that the 45V collector-emitter voltage and 500mA current limits align with the circuit's operational parameters. Consider the AEC-Q101 qualification if the application involves automotive environments.

Part Context

This component is part of the broader BC817 family of NPN transistors produced by multiple manufacturers including Infineon and Diotec. While sharing similar core electrical characteristics, variations exist in power dissipation ratings, package types, and gain ranges across different vendors. The MCC version specifically utilizes the SOT-323 package and adheres to its own manufacturing specifications.

Replacement Considerations

Potential substitutes include BC817-40WHE3-TP from the same manufacturer, which shares the SOT-323 package and similar electrical ratings. Other generic equivalents like BC817-40 from Diotec may require verification of package compatibility and specific gain binning differences.