PDTA123JU-QX

Overview

The PDTA123JU-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 internal biasing resistors to simplify circuit design and reduce component count. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 80 V and a continuous collector current of 100 mA. The device operates within an extended temperature range from -55 °C to +150 °C. It features a typical input resistance of 2.2 kOhms and a power dissipation rating of 315 mW. This component is qualified to automotive standards, ensuring reliability in demanding environments.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q101 standards for high-reliability applications
• Integrated PNP transistor with built-in base resistor network for simplified interface
• High voltage tolerance with 80 V collector-emitter breakdown capability
• Compact SOT-323 surface-mount packaging for space-constrained designs

Applications

• Automotive electronic control units requiring robust switching components
• Load switching circuits in vehicle body electronics
• Interface logic level translation in mixed-signal automotive systems
• General-purpose switching in industrial equipment operating under harsh conditions

Procurement Notes

Verify the specific suffix '-QX' against official Nexperia documentation to confirm it denotes the reel packaging format and automotive grade status. Ensure that the ordering information matches the exact part number required for your bill of materials, as suffix variations may indicate different tape-and-reel specifications or regional compliance markings without altering the core electrical function.

Selection Notes

Select this component when an automotive-qualified PNP digital transistor with 80 V voltage rating is required. Compare the 2.2 kOhm typical input resistance against your microcontroller's output drive capabilities to ensure proper saturation. Consider the SOT-323 package dimensions if board real estate is limited. Verify thermal management requirements given the 315 mW power dissipation limit in enclosed automotive enclosures.

Part Context

This part belongs to Nexperia’s PDTA series of pre-biased transistors, which integrate NPN or PNP transistors with one or two resistors. The 'JU' designation typically indicates the SOT-323 package and specific resistor values, while the '-Q' suffix signifies automotive qualification. The 'PDTA' prefix identifies it as a PNP type with dual resistors, although datasheets often specify a single integrated resistor configuration for this specific variant.

Replacement Considerations

Potential substitutes include other automotive-qualified PNP digital transistors in SOT-323 packages with similar 80 V ratings. Verify equivalent resistor values and hFE characteristics before substitution. Common alternatives may include parts from ON Semiconductor or STMicroelectronics, but direct pin-to-pin compatibility and parameter matching must be confirmed via respective datasheets.