DDTC143XE-7-F

Overview

The DDTC143XE-7-F is an NPN pre-biased transistor from Diodes Incorporated, housed in a SOT523 package. It features built-in biasing resistors with nominal values of R1 = 4.7 kΩ and R2 = 10 kΩ. The device supports a supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Power dissipation is rated at 150 mW, with a thermal resistance (RθJA) of 833 °C/W. Operating and storage temperatures range from -55°C to +150°C. The DC current gain (hFE) has a minimum value of 30, and the transition frequency (fT) is typically 250 MHz.

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 for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify component authenticity by checking the manufacturer's marking code against official documentation. Confirm compliance with environmental directives such as RoHS and REACH through supplier declarations. Ensure proper handling procedures are followed during assembly to prevent electrostatic discharge damage to the semiconductor junctions.

Selection Notes

Select this part when a compact NPN solution with integrated biasing is required. The SOT523 package offers space efficiency for dense PCB layouts. Consider the specific resistor ratio and input voltage limits to ensure compatibility with the driving logic levels and load requirements of the target application.

Part Context

This component belongs to the DDTC series of pre-biased transistors from Diodes Incorporated. The series includes various resistor combinations and complementary PNP types (DDTA). The 'E' suffix indicates the specific resistor ratio configuration within the family.

Replacement Considerations

Complementary PNP types like DDTA143XE-7-F are available. Other DDTC variants with different resistor ratios may serve as alternatives if electrical parameters align with the design requirements.