DDTA143TCA-7-F

Overview

The DDTA143TCA-7-F is a PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT23 surface-mount package. It integrates a single internal biasing resistor (R1) with a nominal value of 4.7 kΩ and a tolerance of ±30%. The device features an epitaxial planar die construction and supports a maximum collector current of -100 mA and a collector-emitter voltage of -50 V. Key electrical parameters include a DC current transfer ratio (hFE) ranging from 100 to 600 at IC = -1mA, VCE = -5V, and a gain-bandwidth product (fT) of 250 MHz. Power dissipation is rated at 200 mW with a thermal resistance of 625 °C/W. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Integrates a single built-in biasing resistor (R1 only) for simplified circuit design
• Utilizes epitaxial planar die construction for reliable performance
• Comes in a compact SOT23 package suitable for surface mount applications
• Fully RoHS compliant and halogen/antimony-free

Applications

• General-purpose switching applications
• Driver circuits for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the standard 3,000-unit reel packaging configuration as documented in the manufacturer's ordering information table. Confirm that the component status remains 'Active' for current production needs. Ensure compliance with environmental directives such as RoHS 3 and REACH requirements during procurement processes.

Selection Notes

Select this component when a PNP pre-biased transistor with a 4.7 kΩ base resistor is required. Verify that the -50 V collector-emitter voltage rating meets the circuit's maximum operating voltage. Ensure the -100 mA continuous collector current capability aligns with the load requirements. Consider the SOT23 package dimensions for PCB layout constraints.

Part Context

This part belongs to the DDTA R1-ONLY series from Diodes Incorporated, which offers various resistor values within the same SOT23 footprint. The 'CA' suffix indicates the specific package and marking code variant. Other parts in this series include DDTA113TCA through DDTA125TCA, providing options for different input resistance values while maintaining identical electrical characteristics and package styles.

Replacement Considerations

Direct replacements within the same family include other DDTA14xTCA variants if different resistor values are acceptable, or DDTA1xxTCA parts with matching polarity and voltage ratings. Cross-family replacements require verifying pin compatibility and ensuring equivalent hFE and saturation voltage specifications.