BC817K-40HR

Overview

The Nexperia BC817K-40HR is an NPN general-purpose transistor housed in a small SOT23 (TO-236AB) surface-mounted plastic package. It supports a maximum collector-emitter voltage of 45 V and a continuous collector current of 500 mA, with peak currents reaching 1 A. The device offers three distinct DC current gain selections; the BC817K-40H variant provides a minimum hFE of 250 at IC = 100 mA. It features high power dissipation capabilities and is rated for high-temperature applications up to 175 °C.

Feature Summary

• High current capability suitable for demanding switching loads
• Three selectable current gain ranges for precise circuit design
• Enhanced thermal performance supporting operation up to 175 °C

Applications

• General-purpose switching circuits
• Amplification stages
• High-temperature electronic environments

Procurement Notes

Verify that the specific suffix HR corresponds to the requested reel or tape packaging configuration as defined by Nexperia's ordering information. Confirm the non-automotive qualification status aligns with your application requirements, as automotive versions require different part numbers.

Selection Notes

Select this component when a compact SOT23 footprint is required alongside high current handling. The BC817K-40H variant is optimal for designs needing higher base drive efficiency due to its elevated minimum current gain compared to lower gain variants in the series.

Part Context

This device belongs to the BC817KH series of NPN general-purpose transistors. It serves as the complement to the BC807KH PNP series. The 'K' indicates a shrinked chip version within the SOT23 package family, offering improved electrical characteristics over standard variants.

Replacement Considerations

BC817K-40H