PDTA115EK,115

Overview

The PDTA115EK,115 is a PNP resistor-equipped transistor from the PDTA115E series manufactured by NXP Semiconductors. It integrates a single PNP transistor with two built-in bias resistors: R1 (base) and R2 (emitter), both nominally 100 kΩ. The device is housed in the SOT346 (SC-59) plastic surface-mounted package. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V, a DC output current (IO) of -20 mA, and a total power dissipation of 250 mW at an ambient temperature up to 25 °C. The input-off voltage is typically -1.2 V, and the DC current gain (hFE) is 80 at IC = -5 mA.

Feature Summary

• Built-in bias resistors simplify circuit design and reduce component count
• Reduces pick and place costs for automated assembly
• General purpose switching and amplification capabilities

Applications

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

Procurement Notes

Verify the specific ordering suffix '115' against the manufacturer's current catalog to confirm packaging details and availability status. Ensure the selected package variant matches the required PCB footprint, as the PDTA115E series offers multiple package options including SOT346, SOT23, and SOT323. Confirm RoHS compliance and lead-free specifications if required by the manufacturing process.

Selection Notes

Select the PDTA115EK specifically when the SOT346 (SC-59) surface-mount package is required for the design. Verify that the 100 kΩ internal resistor values align with the desired base drive characteristics. Consider thermal resistance limits and maximum power dissipation constraints relative to the operating ambient temperature and mounting conditions on the PCB copper area.

Part Context

The PDTA115EK belongs to the broader PDTA115E series of PNP resistor-equipped transistors. This series provides various package options such as SOT416, SOT490, SOT883, SOT54, SOT23, and SOT323, all sharing identical electrical characteristics but differing in physical dimensions and pin configurations. The series serves as a compact solution for replacing discrete transistor and resistor networks in space-constrained designs.

Replacement Considerations

Direct functional equivalents within the same series include PDTA115EE, PDTA115EEF, PDTA115EM, PDTA115ES, PDTA115ET, and PDTA115EU. Note that these alternatives utilize different packages (e.g., SOT416, SOT490, SOT883, SOT54, SOT23, SOT323) and require corresponding PCB footprint modifications. No other part numbers are confirmed as direct substitutes.