DCX143EU-7-F

Overview

The DCX143EU-7-F is a complementary pre-biased transistor pair from Diodes Incorporated, housed in an SOT-363 surface-mount package. It integrates NPN and PNP transistors with built-in biasing resistors (R1=4.7kΩ, R2=4.7kΩ). The device supports a supply voltage of 50V and handles continuous collector currents up to 100mA per element. Key electrical parameters include a minimum DC current gain (hFE) of 100 for the NPN section and 40 for the PNP section at specified test conditions. Power dissipation is rated at 200mW total, with a thermal resistance of 625°C/W. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Complementary dual configuration integrating both NPN and PNP sections within a single compact SOT-363 package.
• Built-in biasing resistors simplify circuit design by reducing component count and PCB footprint.
• Totally lead-free and fully RoHS compliant, ensuring compliance with environmental directives.

Applications

• General-purpose switching applications requiring complementary logic levels.
• Driver circuits for low-power loads where space-saving dual-transistor solutions are preferred.
• Digital interface buffering between microcontrollers and peripheral devices.

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the 3,000-unit reel packaging format as listed in the official Diodes Incorporated documentation. Confirm that the 'Active' status applies to your region and intended volume requirements before finalizing procurement plans.

Selection Notes

Select this part when a matched NPN/PNP pair with identical 4.7kΩ biasing resistors is required. Ensure the 50V supply voltage rating and 100mA current limits align with the target application's peak demands. Consider the SOT-363 package dimensions for layout compatibility.

Part Context

This component belongs to the DCX series of 50V complementary pre-biased transistors. It shares the same internal architecture and package style as other variants like the DCX144EU but differs in resistor values. The series is designed for automated assembly and general digital switching tasks.

Replacement Considerations

For direct functional replacement, consider the DCX143EU-7R-F variant which offers cut-tape packaging instead of reel. Other DCX series parts with different resistor values or configurations require circuit redesign.