DDTA143ZCA-7-F

Overview

The DDTA143ZCA-7-F is a single PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT23 surface-mount package. It integrates internal biasing resistors with nominal values of R1 = 4.7 kΩ and R2 = 47 kΩ. The device supports a maximum supply voltage (VCC) of -50 V and a continuous collector current (Iout) of -100 mA. Power dissipation is rated at 200 mW, with a thermal resistance (RθJA) of 625 °C/W. The DC current gain (Gl) has a minimum value of 80, and the transition frequency (fT) is typically 250 MHz. Operating and storage temperatures range from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated biasing resistors simplify circuit design
• Surface-mount package optimized for automated assembly
• Fully RoHS compliant and halogen/antimony-free

Applications

• General-purpose switching applications
• Driver circuits for logic interfaces
• High-density PCB designs requiring compact components

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm datasheet revision DS30334 Rev. 8-2 matches procurement documentation. Ensure packaging specifications align with automated assembly requirements. Validate compliance with relevant environmental directives prior to integration.

Selection Notes

Select this component when a PNP configuration with specific 4.7kΩ/47kΩ resistor ratios is required. Compare against complementary NPN types like DDTC143ZCA-7-F for balanced circuit designs. Evaluate thermal constraints based on the 200mW power dissipation rating and 625 °C/W thermal resistance.

Part Context

This part belongs to the DDTA (R1≠R2 SERIES) CA family, which offers various resistor combinations within the same SOT23 footprint. The 'CA' suffix denotes the specific package type and material composition. Other variants in this series include DDTA113ZCA and DDTA143XCA, providing flexibility for different biasing needs without changing the physical layout.

Replacement Considerations

Direct substitutes within the same series include DDTA143ZCA without the '-7-F' suffix if reel packaging is not critical. Complementary NPN equivalent is DDTC143ZCA-7-F. Verify pinout compatibility and electrical characteristics before substitution.