DDTC144VKA-7-F

Overview

The DDTC144VKA-7-F is a single NPN digital transistor manufactured by Diodes Incorporated, housed in an SC-59 (SOT-363) surface-mount package. It integrates built-in biasing resistors to simplify circuit design. Key electrical parameters include a collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The typical input resistor value is 47 kOhms with a resistance ratio of 4.7. The device features a minimum DC current gain (hFE) of 33 and a power dissipation rating of 200 mW. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates NPN transistor with built-in biasing resistors for simplified interface
• Single configuration designed for compact surface-mount applications
• High thermal stability supporting operation up to +150°C

Applications

• General-purpose switching circuits
• Driver stages for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official datasheets prior to integration. Check for End-of-Life (EOL) notices as availability may be restricted. Ensure packaging specifications match production requirements. Validate part markings against official documentation to prevent counterfeit risks.

Selection Notes

Select this component when a single NPN digital transistor with a 47 kOhm base resistor is required in an SC-59 package. Consider the 50 V collector-emitter voltage and 100 mA current limits for load compatibility. Evaluate the 200 mW power dissipation capability against thermal constraints. Compare hFE minimums and resistance ratios with alternative packages if space permits.

Part Context

This part belongs to the DDTC144 series of pre-biased transistors from Diodes Incorporated. These devices are designed to replace discrete resistor-transistor networks, reducing board space and assembly costs. The SC-59 package offers a compact footprint suitable for dense PCB layouts. The series typically includes various resistor values and configurations to support diverse logic interface needs.

Replacement Considerations

Publicly confirmed substitute part numbers for DDTC144VKA-7-F were not identified in the provided source material. Verify pinout and electrical characteristics before considering any cross-reference components.