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The PDTB113ZU-QX is a PNP Resistor-Equipped Transistor (RET) manufactured by Nexperia. It integrates a single PNP transistor with built-in bias resistors in a DFN3 (SOT1215) surface-mount package. The device supports a maximum collector-emitter voltage of 50 V and a continuous collector current of 500 mA. It features a built-in bias resistance ratio of 4.55. The component operates within a temperature range of -55 °C to +150 °C and complies with RoHS standards.
Verify the specific suffix 'QX' against official Nexperia documentation to confirm it denotes the standard tape-and-reel packaging format rather than a variant with altered electrical characteristics. Ensure the ordering part number matches the exact datasheet revision required for the target production batch to avoid discrepancies in pinout or thermal performance specifications.
Select this component when a compact PNP switching solution with integrated base drive is required. The built-in resistor eliminates external biasing components, reducing board space and assembly costs. Verify that the 500 mA current rating and 50 V voltage limit meet the specific load requirements of the application circuit before finalizing the design.
This part belongs to the PDTB113Z_123Y_143XQA_SER family of 50 V, 500 mA PNP resistor-equipped transistors. It serves as the PNP complement to NPN RETs such as the PDTD113Z series. The DFN3 package offers a leadless thermal path, distinguishing it from traditional plastic packages like SOT323 while maintaining a small footprint suitable for modern automated assembly processes.
Direct functional substitutes include the PDTB113ZU and PDTB113Z variants within the same Nexperia family. Cross-brand replacements require matching the 50 V/500 A ratings, PNP configuration, and integrated resistor topology.