PDTA143EU-QX

Overview

The PDTA143EU-QX is a PNP resistor-equipped transistor (RET) from Nexperia, designed for surface-mount applications in the SOT-323 package. It integrates a single PNP bipolar junction transistor with built-in bias resistors: R1 (base) is 4.7 kΩ and R2 (emitter) is 47 kΩ. The device supports a maximum collector-emitter voltage (VCEO) of -50 V and a continuous collector current (IC) of -100 mA. It features a maximum power dissipation of 200 mW and operates within a temperature range of -55°C to +150°C. The component is qualified under AEC-Q101 standards for automotive reliability.

Feature Summary

• Integrates base and emitter resistors to simplify circuit design and reduce component count
• AEC-Q101 qualified for automotive electronics applications
• High DC current gain ensures reliable switching performance
• Low saturation voltage minimizes power loss during conduction

Applications

• General purpose switching and amplification circuits
• Inverter and interface logic circuits
• Circuit driver stages for low-power loads

Procurement Notes

Verify the specific suffix -QX against the official Nexperia datasheet to confirm AEC-Q101 qualification status and exact pinout configuration. Ensure the ordering code matches the required packaging format, such as cut tape or reel, as specified by the distributor. Cross-reference the manufacturer part number with the latest product change notices to confirm availability and compliance with current environmental regulations like RoHS.

Selection Notes

Select this component when a compact PNP solution with integrated biasing is required for space-constrained designs. The SOT-323 package offers a small footprint suitable for high-density PCB layouts. Consider the -50 V rating and -100 mA current limit to ensure adequate headroom for the intended load. Verify thermal management requirements given the 200 mW power dissipation limit in the small outline package.

Part Context

This part belongs to the PDTA143 series of PNP resistor-equipped transistors. It serves as the pre-biased counterpart to standard discrete PNP transistors, eliminating the need for external base and emitter resistors. The series includes variants in different packages such as SOT23 and DFN1006-3, offering flexibility for various mounting and thermal requirements while maintaining consistent electrical characteristics across the family.

Replacement Considerations

Direct substitutes include other PNP RETs with identical 4.7 kΩ base and 47 kΩ emitter resistors and -50 V / -100 mA ratings. Check for compatible packages like SOT-323 or equivalent footprints. Ensure replacement parts meet AEC-Q101 if automotive qualification is mandatory. Verify that alternative manufacturers offer matching hFE and VCE(sat) specifications for direct pin-to-pin interchangeability.