DDTA143FCA-7-F

Overview

The DDTA143FCA-7-F is a PNP pre-biased transistor from Diodes Incorporated, housed in an SOT-23 surface-mount package. It integrates internal biasing resistors with values of R1 = 4.7 kΩ and R2 = 22 kΩ. The device supports a maximum supply voltage (VCC) of -50 V and a continuous collector current (IC) of -100 mA. Power dissipation is rated at 200 mW, with a thermal resistance (RθJA) of 625 °C/W. The minimum DC current gain (hFE) is specified as 68. Operating and storage temperatures range from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Built-in biasing resistors simplify circuit design
• Surface-mount package suited for automated assembly

Applications

• General-purpose switching applications
• Driver circuits for logic interfaces
• Power management control stages

Procurement Notes

Verify the specific ordering suffix '-7-F' against official documentation to confirm reel packaging specifications and RoHS compliance status. Ensure that the requested quantity aligns with standard factory packing quantities to avoid partial reel handling issues. Confirm lead-free and halogen-free material declarations match project requirements before finalizing procurement orders.

Selection Notes

Select this component when a PNP configuration with integrated base and emitter resistors is required. The 4.7 kΩ input resistor value dictates the drive current requirements compared to other variants in the DDTA series. Verify that the -50 V voltage rating and -100 mA current capacity meet the load conditions of the target application circuit.

Part Context

This part belongs to the DDTA (R1≠R2 SERIES) CA family of pre-biased transistors manufactured by Diodes Incorporated. It serves as a complementary counterpart to NPN types within the same product line. The 'CA' designation indicates the specific resistor ratio and package type used in this series.

Replacement Considerations

Direct substitutes include other DDTA143FCA variants from different manufacturers if pinout and electrical characteristics match exactly. Cross-reference with DDTC143FCA only if an NPN equivalent is acceptable for the circuit topology.