DTC143XUA-TP

Overview

The DTC143XUA-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single NPN epitaxial planar die with built-in biasing resistors in a SOT-323 package. The device supports a maximum supply voltage of 50 V and a collector current of 100 mA, with a power dissipation rating of 200 mW at 25°C. Key electrical parameters include a typical transition frequency of 250 MHz, a DC current gain (GI) minimum of 30, and an input resistance (R1) of 4.7 kΩ. The internal resistor network features a ratio (R2/R1) of approximately 2.1.

Feature Summary

• Epitaxial planar die construction for reliable switching performance
• Built-in biasing resistors simplify circuit design by eliminating external components
• Halogen-free "Green" device compliant with environmental standards
• Moisture sensitivity level 1 for robust handling during assembly

Applications

• Inverter circuits requiring simplified input configurations
• Interface logic between microcontrollers and peripheral devices
• Driver stages for low-power loads or signal conditioning

Procurement Notes

Verify the component authenticity through authorized MCC distributors to ensure full traceability and compliance with quality standards. Confirm that the ordering suffix "-TP" corresponds to the tape and reel packaging format containing 3,000 pieces per reel as specified in the official documentation. Ensure storage conditions adhere to the manufacturer's guidelines for moisture-sensitive devices.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for space-constrained designs. The SOT-323 package offers a small footprint suitable for surface mount applications. Consider the 50 V collector-emitter voltage and 100 mA current limits to ensure operation within safe margins for the intended load requirements.

Part Context

The DTC143XUA belongs to the DTC143XUA series of digital transistors produced by Micro Commercial Components. This series is designed to replace discrete resistor-transistor networks, reducing board space and assembly costs. The specific part number includes the "-TP" suffix indicating the standard tape and reel packaging configuration used for automated manufacturing processes.

Replacement Considerations

Cross-reference with other NPN digital transistors featuring similar R1 values and SOT-323 packages. Verify pinout compatibility and electrical ratings such as VCEO and IC before substitution. Check if alternative manufacturers offer equivalent built-in resistor ratios to maintain circuit functionality.