ADTA143ECAQ-7

Overview

The ADTA143ECAQ-7 is a PNP pre-biased transistor manufactured by Diodes Incorporated in an SOT23 package. It features built-in biasing resistors with R1 equal to R2, both nominally 4.7kΩ. The device has a maximum supply voltage of -50V and a continuous collector current of -100mA. Power dissipation reaches 310mW at +25°C ambient temperature. It operates within a temperature range of -55°C to +150°C. The component is AEC-Q101 qualified for automotive applications and RoHS compliant.

Feature Summary

• Epitaxial planar die construction with integrated biasing resistors
• AEC-Q101 qualification suitable for automotive applications
• Totally lead-free and fully RoHS compliant

Applications

• Automotive electronic circuits requiring specific change control
• General-purpose switching applications
• Driver circuits for loads such as relays or lamps

Procurement Notes

Verify the ordering suffix matches the required packing quantity. The -7 suffix indicates a 3,000-unit reel carrier. Confirm that the manufacturer's IATF 16949 certification aligns with your facility's quality requirements. Ensure the date code marking corresponds to your production timeline needs.

Selection Notes

Select this part when a single PNP digital transistor with equal internal biasing resistors is needed. The SOT23 package suits space-constrained designs. Verify that the -50V supply voltage rating meets the circuit requirements. Check if the 4.7kΩ resistor values provide appropriate base drive for the intended load current.

Part Context

This component belongs to the ADTA series of pre-biased transistors from Diodes Incorporated. These devices integrate NPN or PNP transistors with external biasing resistors into a single surface-mount package. The ADTA143 variant specifically utilizes equal resistance values for its internal network.

Replacement Considerations

Direct substitutes include other PNP pre-biased transistors with similar electrical characteristics and SOT23 packaging. Verify pinout compatibility and resistor tolerance specifications before substitution.