BCP55-QX

Overview

The BCP55-QX is an NPN medium power transistor manufactured by Nexperia, designed for automotive applications. It operates with a maximum collector-emitter voltage of 60 V and supports a continuous collector current of 1 A. The device utilizes the SOT223 (SC-73) plastic surface-mounted package. Key electrical parameters include a DC current gain (hFE) range of 100 to 200 at 150 mA, a collector-emitter saturation voltage of 400 mV at 1 A, and a power dissipation capability of 800 mW. It functions within a temperature range from -55 °C to +150 °C.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q101 standards
• High current handling capability suitable for power management tasks
• Exposed thermal pad in SOT223 package for efficient heat dissipation

Applications

• Linear voltage regulators
• MOSFET drivers
• Battery-driven devices
• Amplifiers

Procurement Notes

Verify the specific suffix designation against official Nexperia documentation to confirm the exact binning or packaging configuration. Ensure that the component meets the required AEC-Q101 qualification level for your target automotive application. Cross-reference the ordering part number with the manufacturer's latest datasheet to validate pinout compatibility and thermal characteristics before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits requiring robust NPN switching or amplification in automotive environments. The SOT223 package offers a balance between power handling and board space efficiency. Consider the exposed pad thermal performance if operating near maximum power dissipation limits. Verify that the 60 V voltage rating exceeds the maximum circuit supply voltage with adequate safety margin.

Part Context

This part belongs to the BCX55/BCP55 family of NPN medium power transistors. While the standard BCX55 uses the SOT89 package, the BCP55 variant specifically employs the SOT223 package. The QX suffix indicates automotive qualification under the AEC-Q101 standard, distinguishing it from general-purpose industrial variants within the same electrical specification family.

Replacement Considerations

Direct substitutes include the BCX55-10,115 for non-automotive contexts, though package differences exist. For equivalent automotive-grade performance in the SOT223 package, verify availability of other Nexperia AEC-Q101 qualified NPN transistors with matching 60 V and 1 A ratings.