PDTC115EK,115

Overview

The PDTC115EK,115 is an NPN resistor-equipped transistor from the PDTC115E series manufactured by NXP Semiconductors. It integrates a base bias resistor (R1) of 100 kΩ and an emitter-base resistor (R2) of 100 kΩ within a single SOT346 package. The device supports a maximum collector-emitter voltage (VCEO) of 50 V and a DC output current (IO) of 20 mA. Key electrical characteristics include a typical DC current gain (hFE) of 80 at IC = 5 mA, a saturation voltage (VCEsat) of 150 mV at IC = 5 mA, and a thermal resistance (Rth(j-a)) of 500 K/W in free air.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count.
• Reduces pick and place costs through consolidated discrete semiconductor packaging.
• Provides galvanic isolation between input and output via internal resistor network.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest product data sheet to ensure correct package type and manufacturing origin. Confirm that the SOT346 package dimensions align with the target PCB footprint requirements. Cross-reference the part number with official distributor catalogs to validate current production status and availability before initiating procurement processes.

Selection Notes

Select this component when a compact NPN switching solution with integrated biasing is required. The 100 kΩ resistor values are suitable for standard logic-level driving applications. Ensure the operating ambient temperature remains within the -65 °C to +150 °C range and verify that the total power dissipation limits for the SOT346 package are not exceeded under peak load conditions.

Part Context

This component belongs to the PDTC115E series of NPN resistor-equipped transistors. It serves as a cost-effective alternative to discrete transistor and resistor combinations. The series includes multiple package options such as SOT23, SOT323, and SOT416, allowing designers to choose form factors based on space constraints and assembly methods while maintaining consistent electrical performance across the family.

Replacement Considerations

Direct substitutes within the same series include PDTA115EK (PNP complement). Other packages in the series like PDTC115ET or PDTC115EU offer identical electrical specifications but require different PCB footprints. Verify pinout compatibility if substituting with other SOT346 devices from different manufacturers.