DDTD142JC-7-F

Overview

The DDTD142JC-7-F is an NPN pre-biased surface-mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with a typical input resistance of 0.47kΩ and a base resistor of 10kΩ. The device operates within a supply voltage range up to 50V and supports a continuous collector current of 500mA. Power dissipation reaches 250mW at +25°C ambient temperature, with a thermal resistance (junction-to-ambient) of 500°C/W. The component utilizes SOT-23 packaging and functions across a temperature range from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated biasing resistors simplify circuit design
• Totally lead-free and fully RoHS compliant
• Halogen and antimony free "Green" device

Applications

• General-purpose switching applications
• Driver circuits requiring integrated biasing
• Automotive electronics (requires specific qualification contact)

Procurement Notes

Verify the exact part number against official manufacturer documentation before procurement. Confirm that the ordering suffix matches the required electrical characteristics and package type. Ensure compliance with relevant environmental directives such as RoHS and REACH. Check for any automotive-specific requirements if the application demands AEC-Q100/101 qualification or PPAP capability. Always refer to the latest datasheet revision for accurate specifications.

Selection Notes

Select this component when an NPN pre-biased transistor with 500mA output current and 50V breakdown voltage is required. The 0.47kΩ input resistor and 10kΩ base resistor configuration suits standard logic interface needs. Consider the SOT-23 package size for space-constrained PCB layouts. Verify thermal management requirements based on the 500°C/W junction-to-ambient resistance in your specific application environment.

Part Context

This component belongs to the DDTD series of NPN pre-biased transistors from Diodes Incorporated. It is designed as a complementary counterpart to PNP types within the same family. The device integrates internal resistors to replace discrete components, reducing board space and assembly complexity. It is suitable for general electronic applications requiring simple switching or amplification functions.

Replacement Considerations

Check for direct substitutes within the DDTD series, such as DDTD122LC or DDTD142TC, noting differences in resistor values. Verify pinout compatibility and electrical ratings before substitution. Ensure the replacement part meets the same environmental and regulatory standards.