DDTA144VE-7-F

Overview

The DDTA144VE-7-F is a PNP pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction and integrates internal biasing resistors with nominal values of R1 = 47 kΩ and R2 = 10 kΩ. The device operates within a supply voltage range up to -50 V and supports a continuous collector current of -100 mA. It is housed in a compact SOT-523 package, suitable for automated assembly. The component meets AEC-Q101 standards for high reliability and complies with RoHS directives.

Feature Summary

• Integrates two distinct biasing resistors (R1 ≠ R2) to simplify circuit design and reduce board space.
• Qualified to AEC-Q101 automotive standards for high reliability applications.
• Utilizes epitaxial planar die construction for stable performance.
• Compliant with RoHS 3 and defined as a Halogen and Antimony free "Green" device.

Applications

• Automotive electronic systems requiring high reliability components.
• General-purpose switching applications utilizing pre-biased configurations.
• Low-voltage digital logic interfacing circuits.

Procurement Notes

Verify the specific ordering suffix matches the required packaging quantity and reel size. Confirm that the component marking code aligns with the intended production date codes. Ensure compliance with environmental regulations such as RoHS 3 and REACH requirements for the target market. Check for any specific quality certifications or PCN notifications relevant to the manufacturing site.

Selection Notes

Select this part when a PNP pre-biased transistor with a 47 kΩ base resistor and 10 kΩ emitter resistor is required. Compare the 150 mW power dissipation limit against thermal constraints. Consider the SOT-523 footprint dimensions for PCB layout compatibility. Evaluate the -50 V supply voltage rating against maximum circuit operating conditions.

Part Context

This component belongs to the DDTA(R1≠R2 Series)E family of pre-biased transistors from Diodes Incorporated. It shares the same SOT-523 mechanical case and general electrical characteristics with other variants in the series, distinguished primarily by the specific resistance values of the integrated R1 and R2 components.

Replacement Considerations

Direct substitutes within the same series include DDTA144WE-7-F, which offers different resistor ratios. Verify pinout compatibility and ensure that alternative parts meet the same AEC-Q101 qualification standards if used in automotive contexts.

FAQ

What are the nominal values of the built-in biasing resistors?

The DDTA144VE-7-F includes a base resistor (R1) of 47 kΩ and an emitter resistor (R2) of 10 kΩ.

Is this component qualified for automotive applications?

Yes, the DDTA144VE-7-F is qualified to AEC-Q101 standards for high reliability.

What is the maximum power dissipation at 25°C?

The maximum power dissipation is 150 mW when mounted on an FR4 PC board with minimum recommended pad layout.