DDTA143EE-7-F

Overview

The DDTA143EE-7-F is a single PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT523 surface-mount package. It integrates two equal biasing resistors (R1 = R2) with a nominal value of 4.7 kΩ. The device supports a maximum supply voltage of 50 V and a continuous collector current of -100 mA. Electrical characteristics include a typical DC current gain of -20 at -10 mA output current and a transition frequency of 250 MHz. Thermal performance specifies a power dissipation of 150 mW and a junction-to-ambient thermal resistance of 833 °C/W. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Integrates dual biasing resistors with a fixed ratio of unity for simplified circuit design
• Constructed using epitaxial planar die technology for high reliability
• Compliant with RoHS 3 standards and halogen-free manufacturing processes

Applications

• General-purpose switching applications requiring integrated base drive
• Driver circuits for logic interfaces and level shifting
• Automotive electronics utilizing AEC-Q qualified components

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm packaging details. Confirm that the component meets all applicable environmental directives required for the target deployment region before finalizing procurement specifications.

Selection Notes

Select this component when a PNP configuration with matched internal resistors is required. Ensure the application voltage does not exceed the 50 V limit and that the thermal environment accommodates the specified power dissipation constraints within the SOT523 footprint.

Part Context

This part belongs to the DDTA EE series of pre-biased transistors designed for compact surface-mount implementations. The 'EE' designation indicates the inclusion of equal-value internal resistors, distinguishing it from other variants in the broader digital transistor family offered by the manufacturer.

Replacement Considerations

Direct substitutes include the DDTC143EE-7-F for NPN configurations or other DDTA series members such as DDTA123EE-7-F and DDTA114EE-7-F, provided the resistor values align with the circuit requirements.

FAQ

What is the nominal resistance value for the internal biasing resistors?

The internal resistors R1 and R2 have a nominal value of 4.7 kΩ.

Is this component suitable for automotive applications?

Yes, parts qualified to AEC-Q standards are available for automotive applications requiring specific change control.

What is the maximum operating temperature for this device?

The maximum operating temperature for the junction and storage is +150°C.