PDTC123EE,115

Overview

The PDTC123EE,115 is an NPN resistor-equipped transistor from the PDTC123E series manufactured by Nexperia. It integrates a base resistor (R1) of 2.2 kΩ and an emitter-base resistor (R2) of 2.2 kΩ within a single SOT416 (SC-75) plastic surface-mounted package. The device supports a collector-emitter voltage (VCEO) of 50 V and a DC output current (IO) of 100 mA. Key electrical characteristics include a maximum collector-base cut-off current of 100 nA at 50 V, a typical DC current gain (hFE) of 30 at 20 mA, and a saturation voltage of 150 mV at 10 mA. Thermal resistance from junction to ambient in free air is specified at 833 K/W for this package.

Feature Summary

• Integrates two bias resistors to simplify circuit design and reduce component count
• Provides built-in base and emitter-base resistance for standardized switching applications
• Offers reduced pick-and-place costs through compact surface-mount packaging

Applications

• General purpose switching and amplification
• Inverter and interface circuits
• Circuit driver

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product status documentation before finalizing procurement plans. Confirm that the SOT416 package dimensions align with the target PCB footprint requirements. Ensure that the thermal resistance specifications are adequate for the intended operating ambient temperature conditions to prevent exceeding the maximum junction temperature limits during operation.

Selection Notes

Select this component when a compact NPN switching solution with integrated biasing is required. The fixed 2.2 kΩ resistor values are suitable for standard logic-level driving applications. Consider the SOT416 package constraints regarding thermal dissipation and available board space. Verify compatibility with the system's voltage levels and current requirements against the absolute maximum ratings provided in the datasheet.

Part Context

This part belongs to the PDTC123E series of NPN resistor-equipped transistors. The series includes multiple package options such as SOT23, SOT323, and SOT54, all featuring identical internal resistor configurations. The PDTC123EE variant specifically utilizes the SOT416 surface-mount package, providing a standardized form factor for automated assembly processes in consumer and industrial electronics manufacturing.

Replacement Considerations

Direct substitutes within the same series include PDTA123EE (PNP complement). Other packages in the PDTC123E series may be functionally equivalent but require mechanical adaptation. Cross-brand replacements must match the 50 V rating, 100 mA current capacity, and 2.2 kΩ/2.2 kΩ resistor ratios.