PDTC143EE,115

Overview

The PDTC143EE,115 is a single NPN digital transistor manufactured by Nexperia (formerly NXP Semiconductors). It integrates an NPN bipolar junction transistor with built-in bias resistors in a compact SOT-323 (SC-70) surface-mount package. The device features a typical base resistor of 4.7 kOhms and a collector-emitter maximum voltage rating of 50 V. It supports a continuous collector current of 100 mA and operates within a temperature range of -65°C to +150°C. This component simplifies circuit design by reducing the external component count required for switching applications.

Feature Summary

• Integrates NPN transistor with built-in bias resistors to simplify circuit topology
• Reduces printed circuit board space requirements through compact SOT-323 packaging
• Eliminates the need for external discrete biasing components

Applications

• General-purpose switching circuits
• Logic level translation interfaces
• Driver stages for low-power loads

Procurement Notes

Verify the manufacturer designation carefully, as Nexperia acquired the standard product portfolio from NXP Semiconductors. Confirm that the ordering suffix matches the specific tape-and-reel packaging configuration required for your assembly line. Ensure the datasheet version aligns with the electrical characteristics needed for your design constraints.

Selection Notes

Select this component when a single NPN switch with integrated biasing is required in a small outline package. Verify that the 50 V collector-emitter voltage and 100 mA current ratings exceed the maximum operational limits of the target application. Consider the thermal performance and power dissipation capabilities inherent to the SOT-323 footprint during layout planning.

Part Context

This part belongs to the PDTCxxxE series of resistor-equipped transistors. These devices are designed to replace multiple discrete components, thereby lowering assembly costs and improving reliability. The series includes various resistance ratios and transistor polarities to accommodate different logic families and switching speeds.

Replacement Considerations

Direct substitutes include other PDTC143 variants with different packages or resistance values. Cross-reference with equivalent parts from manufacturers such as Diodes Incorporated or ON Semiconductor if supply chain diversification is necessary.