DCX143ZU-7R-F

Overview

The DCX143ZU-7R-F is a dual digital transistor manufactured by Diodes Incorporated, housed in an SOT-363-6 surface-mount package. It integrates one NPN and one PNP transistor within a single compact component. The device features typical base resistors of 4.7 kOhms and 47 kOhms, providing pre-biased operation for simplified circuit design. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. The unit supports a minimum DC current gain (hFE) of 100 and operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates complementary NPN and PNP transistors in a single dual configuration
• Includes internal base biasing resistors to reduce external component count
• Designed for high-speed switching applications with a maximum operating frequency of 250 MHz

Applications

• General-purpose switching circuits requiring complementary logic levels
• Interface drivers between microcontrollers and peripheral devices
• Low-power signal switching in portable electronic equipment

Procurement Notes

Verify the specific suffix '7R-F' against the manufacturer's official datasheet to confirm tape-and-reel packaging details and any minor manufacturing variations. Ensure compatibility with standard SMT assembly processes for the SOT-363-6 footprint. Cross-reference the part number with authorized distributors to confirm current availability and lead times, as supply chain conditions may vary.

Selection Notes

Select this component when a complementary NPN/PNP pair is required in a minimal footprint. The 50V rating and 100mA current capacity suit low-voltage digital logic interfaces. Compare input resistance values (4.7k/47k) against circuit drive requirements to ensure proper biasing. Verify that the 200mW power dissipation limit meets thermal constraints in the final application environment.

Part Context

This part belongs to the DCX143 series of dual digital transistors from Diodes Incorporated. It shares the same core electrical characteristics and pinout as the DCX143ZU-7-F variant, differing primarily in packaging format. The series is designed to replace discrete resistor-transistor networks, saving board space and simplifying assembly in consumer and industrial electronics.

Replacement Considerations

The DCX143ZU-7-F is a confirmed equivalent part with identical electrical specifications and pinout. Other compatible alternatives within the same family include DCX143EU-7R-F, provided the package type matches the design requirements.