PDTA123YU-QX

Overview

The PDTA123YU-QX is a PNP digital transistor manufactured by Nexperia, designed for surface-mount applications in the SOT-323 (SC-70) package. It integrates a single PNP bipolar junction transistor with an internal base bias resistor network to simplify circuit design and reduce component count. The device features a collector-emitter voltage rating of 50 V and a continuous collector current capability of 100 mA. It includes a typical input resistance of 2.2 kOhms with a standard resistor ratio of 0.047. Operating within a temperature range from -65°C to +150°C, it offers a power dissipation of 200 mW, making it suitable for compact electronic designs requiring efficient switching or amplification functions.

Feature Summary

• Integrated PNP transistor with built-in base bias resistors for simplified interface driving
• Compact SOT-323 surface-mount package optimized for space-constrained PCB layouts
• Qualified for automotive applications under AEC-Q101 standards

Applications

• Automotive infotainment system logic level shifting
• General-purpose switching in consumer electronics
• Interface circuits for microcontroller GPIO expansion

Procurement Notes

Verify the specific suffix 'QX' against the official Nexperia datasheet to confirm packaging details and automotive qualification status. Ensure the ordering part number matches the required tape-and-reel specifications for automated assembly processes. Cross-reference the manufacturer's latest documentation to validate RoHS compliance and any recent product change notifications affecting this specific variant.

Selection Notes

Select this component when a PNP digital transistor with integrated biasing is required in a small outline package. Compare the 2.2 kOhm internal resistance against circuit drive requirements to ensure adequate base current. Verify that the 50 V voltage rating exceeds the maximum operating voltage in the target application. Consider thermal management constraints given the 200 mW power dissipation limit in the SOT-323 footprint.

Part Context

This part belongs to Nexperia's PDTA series of digital transistors, which combine BJTs with on-chip resistors. The 'Q' designation indicates automotive qualification according to AEC-Q101 standards. The 'YU' suffix typically denotes the SOT-323 package type. This series is engineered to replace discrete resistor-transistor combinations, reducing board space and assembly costs in modern electronic devices.

Replacement Considerations

Direct substitutes include other PNP digital transistors in SOT-323 packages with similar electrical characteristics, such as the PDTA123EUA or PDTA123ETL. Verify pin compatibility and internal resistor values before substitution. Automotive replacements must also hold AEC-Q101 certification if used in qualified systems.