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The BCX18-QR is an automotive-qualified PNP general-purpose transistor manufactured by Nexperia. It is housed in a small SOT23 surface-mounted device plastic package, with the NPN complement being the BCX19. The component supports high current operation up to 500 mA and operates at low voltages with a maximum rating of 25 V. It is fully qualified to the AEC-Q101 standard, ensuring reliability for automotive applications.
Verify the specific suffix -QR indicates AEC-Q101 automotive qualification status. Confirm the SOT23 package dimensions match your PCB footprint requirements. Ensure the 500 mA current and 25 V voltage ratings align with your circuit design limits before finalizing procurement.
Select this PNP transistor when automotive-grade reliability is required for saturated switching or driver roles. Consider the SOT23 package for space-constrained designs. Verify that the 500 mA max current and 25 V max voltage meet your system's electrical demands. The NPN complement BCX19 may be needed for complementary circuit configurations.
The BCX18-QR belongs to Nexperia's portfolio of automotive-qualified discrete components. It complements the NPN BCX19 variant within the same product family. This series supports various industrial and automotive electronic designs requiring robust bipolar junction transistors in compact packages.
The NPN complement BCX19 serves as a related part for complementary designs. No direct substitute part numbers are confirmed in the provided documentation.