DDA143TK-7-F

Overview

The DDA143TK-7-F is a dual PNP digital transistor manufactured by Diodes Incorporated. It features an epitaxial planar construction with built-in biasing resistors, specifically designed for surface mount applications. The device integrates two PNP transistors within a single package, offering a compact solution for switching and amplification tasks. Key electrical parameters include a typical input resistance of 4.7 kOhms, a maximum collector-emitter voltage (VCEO) of 50 V, and a continuous collector current of 100 mA. The component is housed in an SOT-363-6 package and operates within a temperature range of -55°C to +150°C.

Feature Summary

• Dual configuration integrating two PNP transistors with built-in biasing resistors
• Epitaxial planar construction for reliable performance
• Totally lead-free composition compliant with environmental standards

Applications

• General purpose switching circuits requiring dual PNP functionality
• Interface driving applications in consumer electronics
• Logic level translation and buffering in embedded systems

Procurement Notes

Verify the current lifecycle status before procurement, as official sources indicate this specific part number may be subject to end-of-life or discontinuation notices from the manufacturer. Confirm availability through authorized distributors, as stock levels can be restricted or limited. Ensure that the ordering suffix matches the required packaging format, such as reel quantities, to align with production line requirements.

Selection Notes

Select this component when a dual PNP digital transistor with a 4.7 kOhm base resistor is required in a small surface-mount footprint. Compare against other members of the DDA143 series if different resistor values or package types like SOT-563 are needed. Ensure the 50 V VCEO rating meets the circuit's voltage requirements and that the 100 mA current capacity is sufficient for the load.

Part Context

This component belongs to the DDA143 series of pre-biased NPN/PNP dual transistors from Diodes Incorporated. These devices are part of a broader portfolio of surface-mount digital transistors designed to reduce board space and simplify circuit design by integrating biasing resistors directly with the transistor die.

Replacement Considerations

Check for direct substitutes within the same series, such as DDA143TH-7 or DDA143EH-7, which share similar electrical characteristics but may differ in package type (SOT-563 vs SOT-363). Verify pinout compatibility and thermal performance before substituting.