DDTC144ECA-7-F

Overview

The DDTC144ECA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors where R1 equals R2, with a nominal resistance of 47 kΩ for each resistor. The device operates with a maximum supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 68 at VO = 5V and IO = 5mA, and a typical transition frequency (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range from -55°C to +150°C. The component is housed in a SOT-23 package.

Feature Summary

• Epitaxial planar die construction with integrated equal-value biasing resistors
• Qualified to AEC-Q101 standards for high reliability applications
• Totally lead-free and fully RoHS compliant with halogen and antimony-free green packaging

Applications

• Automotive electronic circuits requiring AEC-Q101 qualified components
• General-purpose switching and amplification tasks in consumer electronics
• Driver circuits for logic interfaces and relay drivers

Procurement Notes

Verify the specific ordering suffix '-7-F' against the manufacturer's official documentation to confirm compliance with AEC-Q101 standards and standard reel packaging quantities. Ensure that the 'CA' series designation matches the required R1=R2 resistor configuration for the target circuit design before finalizing procurement orders.

Selection Notes

Select this component when a single NPN transistor with matched internal biasing resistors is required to simplify PCB layout. The 47kΩ resistor value provides a specific input impedance suitable for direct logic interfacing. Consider the 200mW power dissipation limit and thermal resistance when designing heat management strategies for densely packed boards.

Part Context

This part belongs to the DDTC (R1=R2 Series) CA family of NPN pre-biased transistors. It serves as a compact alternative to discrete resistor-transistor networks, reducing component count and assembly costs. The complementary PNP type within this series is designated as DDTA.

Replacement Considerations

Direct replacement options within the same series include DDTC143ECA-7-F (4.7kΩ) or DDTC114ECA-7-F (10kΩ), provided the resistor values match the circuit requirements. Automotive-grade equivalents are available under the Q-suffix designation, such as DDTC144ECAQ-7-F.