DDC143XU-13

Overview

The DDC143XU-13 is an NPN pre-biased small signal dual surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with nominal values of R1 = 4.7 kΩ and R2 = 10 kΩ. The device is housed in a SOT363 package, providing a compact solution for space-constrained designs. Key electrical characteristics include a collector-emitter breakdown voltage (BVCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrated dual biasing resistors simplify circuit design by reducing component count.
• Epitaxial planar die construction ensures reliable performance under various conditions.
• Fully RoHS compliant and halogen/antimony-free 'Green' device suitable for automated assembly.

Applications

• Switching applications requiring high-speed operation.
• Driver circuits for logic outputs or low-power loads.
• Automotive electronics requiring specific change control and AEC-Q101 qualification standards.

Procurement Notes

Verify the ordering suffix '-13' indicates a 10,000-unit reel quantity per the manufacturer's datasheet. Confirm that the marking code 'N04' matches the physical component received. Ensure compliance with RoHS 3 directives if required by your specific application regulations. Check for any recent Product Change Notifications regarding manufacturing sites or materials.

Selection Notes

Select this part when a dual NPN configuration with fixed bias ratios is needed. The 4.7kΩ/10kΩ resistor ratio offers a specific input impedance profile compared to other variants like the DDC143ZU. Consider the SOT363 footprint constraints and thermal resistance of 625 °C/W when designing the PCB layout for adequate heat dissipation.

Part Context

This component belongs to the DDC(XXXX)U series of NPN pre-biased transistors from Diodes Incorporated. It shares the same SOT363 package and general electrical limits as siblings like the DDC143TU and DDC143ZU, differing primarily in the internal resistor network values. The 'U' suffix denotes the specific tape and reel packaging format.

Replacement Considerations

Direct functional substitutes within the same family include DDC143TU (1kΩ R1 only) and DDC143ZU (4.7kΩ/47kΩ). For single-channel requirements, consider the DDTC143 series. Verify pinout compatibility and resistor tolerance specifications (-30% to +30%) before swapping to ensure circuit stability.

FAQ

What are the nominal values of the built-in resistors?

The DDC143XU-13 has a base resistor (R1) of 4.7 kΩ and an emitter resistor (R2) of 10 kΩ.

Is this component qualified for automotive applications?

Yes, the DDC(XXXX)UQ variants are AEC-Q101 qualified and PPAP capable, manufactured in IATF 16949 certified facilities.

What is the maximum power dissipation?

The total power dissipation is 200 mW, with a limit of 150 mW per element when mounted on an FR-4 PC board.