DDTC144WE-7-F

Overview

The DDTC144WE-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=47kΩ and R2=10kΩ. The device supports a supply voltage (VCC) of 50V and a continuous collector current (IC) of 100mA. Power dissipation is rated at 150mW, with an operating temperature range spanning -55°C to +150°C. The transition frequency (fT) is typically 250MHz, and the minimum DC current gain (hFE) is specified at 56.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated unequal biasing resistors (R1≠R2) simplify circuit design
• Totally lead-free and fully RoHS compliant manufacturing
• Halogen and antimony free "Green" device classification

Applications

• General-purpose switching applications
• Driver circuits for logic interfaces
• Automotive electronics requiring specific change control protocols

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's part number and date code markings against official documentation. Ensure compliance with environmental directives such as RoHS 3 and REACH requirements. Confirm that the ordering suffix matches the required packaging specifications before finalizing procurement orders.

Selection Notes

Select this model when an NPN configuration with specific 47kΩ/10kΩ resistor ratios is required. Verify that the 100mA output current and 50V voltage ratings align with the application load. Consider the SOT523 footprint constraints and thermal resistance characteristics during PCB layout planning.

Part Context

This component belongs to the DDTC (R1≠R2 Series) E family of pre-biased transistors. It serves as the NPN counterpart to the DDTA series PNP types. The product line offers various resistor combinations within the same SOT523 mechanical outline to support diverse logic interface needs.

Replacement Considerations

Direct substitutes include other Diodes Incorporated models from the DDTC144 series with matching electrical parameters. Cross-manufacturer equivalents must be verified for pinout compatibility, voltage ratings, and internal resistor tolerances.