PDTC144TK,115

Overview

The PDTC144TK,115 is an NPN resistor-equipped transistor from the PDTC144T series manufactured by Nexperia. It integrates a single bias resistor (R1) of 47 kΩ with R2 left open. The device features a collector-emitter voltage (VCEO) rating of 50 V and a maximum DC output current (IO) of 100 mA. It is housed in a SOT346 plastic surface-mounted package (SC-59). Key electrical characteristics include a minimum DC current gain (hFE) of 100 at IC = 1 mA, a collector-emitter saturation voltage (VCEsat) of 150 mV at IC = 10 mA, and a total power dissipation of 250 mW at Tamb ≤ 25 °C.

Feature Summary

• Integrates a built-in 47 kΩ base bias resistor to simplify circuit design
• Reduces component count and board space requirements compared to discrete configurations
• NPN configuration optimized for general-purpose switching and amplification

Applications

• General purpose switching and amplification circuits
• Inverter circuit configurations
• Interface driver circuits

Procurement Notes

Verify the ordering suffix '115' against official Nexperia documentation to confirm reel size or tape-and-reel specifications. Ensure the source document explicitly defines this suffix, as standard datasheets may only list the base part number PDTC144TK without packaging details.

Selection Notes

Select the PDTC144TK variant when a SOT346 (SC-59) surface-mount footprint is required. This package provides specific thermal resistance characteristics distinct from other series members like SOT23 or SOT323. Confirm that the open R2 configuration aligns with the intended biasing requirements for the application.

Part Context

The PDTC144TK belongs to the PDTC144T series of NPN resistor-equipped transistors. This family includes various package options such as SOT23, SOT323, and SOT883, all sharing identical internal electrical characteristics but differing in physical dimensions and pinning arrangements suitable for different PCB layout constraints.

Replacement Considerations

The PDTA144TK serves as the PNP complement within the same series. Other PDTC144T variants (e.g., PDTC144TT, PDTC144TU) are electrically equivalent but utilize different packages (SOT23, SOT323) and require corresponding PCB footprint modifications.