DDC144TH-7-F

Overview

The DDC144TH-7-F is an NPN pre-biased small signal dual surface mount transistor manufactured by Diodes Incorporated. It features epitaxial planar die construction with a nominal 47kΩ built-in biasing resistor (R1). The device operates within a supply voltage of up to 50V and supports a collector continuous current of 100mA. Power dissipation is rated at 150mW, with a junction-to-ambient thermal resistance of 833°C/W. It functions across a temperature range of -55°C to +150°C and utilizes the SOT563 package.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated nominal 47kΩ biasing resistor simplifies 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
• Low power digital logic interfacing

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distributors or certified partners. Confirm datasheet revision DS37170 Rev. 1-2 matches procurement documentation. Ensure packaging specifications align with project requirements, specifically the 3,000-unit reel configuration. Validate compliance with EU Directive 2002/95/EC and 2011/65/EU standards prior to integration.

Selection Notes

Select this component when a dual NPN configuration with integrated base resistors is required in a compact SOT563 footprint. The 47kΩ input resistor value suits standard logic level driving without external components. Consider the 150mW power dissipation limit and 833°C/W thermal resistance for adequate heat management on FR4 PCBs with minimum recommended pad layouts.

Part Context

This part belongs to the DDC144 series of NPN pre-biased transistors from Diodes Incorporated. It shares the SOT563 case style with other variants in the family but differs in internal resistor values and specific electrical characteristics. The '7-F' suffix indicates the standard tape and reel packaging format containing 3,000 units per reel.

Replacement Considerations

Direct substitutes must match the SOT563 package, NPN polarity, and 47kΩ internal resistor value. Verify that alternative components meet the 50V VCEO rating and 100mA IC requirement. Check thermal resistance and power dissipation limits to ensure equivalent performance under identical operating conditions.