DDTA144EE-7

Overview

The DDTA144EE-7 is a single PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT523 surface-mount package. It integrates two internal biasing resistors with a nominal value of 47 kΩ each (R1 = R2). The device supports a maximum supply voltage of 50 V and a continuous collector current of -100 mA. Electrical characteristics include a minimum DC current gain of -68 at -5V and -5mA, a transition frequency of 250 MHz, and a power dissipation rating of 150 mW. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Integrates dual biasing resistors with equal resistance values for simplified circuit design
• Utilizes epitaxial planar die construction for high reliability
• Complies with RoHS standards and is halogen-free

Applications

• Automotive applications requiring specific change control and AEC-Q qualification
• High-reliability circuits designed to JEDEC standards
• General-purpose digital switching and logic interface applications

Procurement Notes

Verify the exact ordering suffix against official documentation, as variations such as '-F' indicate specific packaging configurations like tape-and-reel quantities. Confirm that the component meets all applicable environmental directives, including RoHS 3 compliance, before finalizing procurement specifications for production integration.

Selection Notes

Select this component when a compact PNP solution with integrated base and emitter biasing resistors is required. Ensure the 47 kΩ resistor value aligns with the target drive current and input voltage levels. Verify that the SOT523 package dimensions fit the available PCB footprint and that the thermal resistance allows for adequate heat dissipation within the operating temperature range.

Part Context

This part belongs to the DDTA144EE series of pre-biased transistors from Diodes Incorporated. The 'EE' designation specifically denotes the 47 kΩ resistor configuration within the R1=R2 family. These devices are engineered to replace discrete resistor networks, reducing board space and assembly complexity while maintaining consistent electrical performance across manufacturing batches.

Replacement Considerations

Direct substitutes include other DDTA144 variants with identical 47 kΩ resistor values but different packages, such as DDTA144ECA-7 in SOT-23. Cross-manufacturer equivalents like ROHM's DTA144EKAT146 may also serve as replacements if pinout compatibility and electrical parameters match the application requirements.