DDTC144VE-7-F

Overview

The DDTC144VE-7-F is an NPN pre-biased transistor from the DDTC (R1≠R2 Series) E manufactured by Diodes Incorporated. It features epitaxial planar die construction and integrates built-in biasing resistors with nominal values of R1 = 47 kΩ and R2 = 10 kΩ. The device is housed in a surface-mount SOT523 package, weighing approximately 0.002 grams. Electrical specifications include a maximum supply voltage (VCC) of 50 V, a continuous output current (IOUT) of 30 mA, and a power dissipation (PD) of 150 mW. The transition frequency (fT) is typically 250 MHz at VCE = 10V and IE = 5mA. Operating and storage temperature ranges span from -55°C to +150°C.

Feature Summary

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

Applications

• General-purpose switching applications requiring integrated biasing
• Low-voltage digital logic interfacing circuits
• Automotive electronics compatible with IATF 16949 certified facilities upon request

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distribution channels or official representatives. Confirm that the received parts match the specified SOT523 package marking code N21 and date code format. Ensure compliance with environmental directives such as RoHS 3 and REACH requirements during procurement. Validate packaging details against standard reel sizes of 3,000 units per carrier.

Selection Notes

Select this component when an NPN pre-biased transistor with specific 47kΩ input and 10kΩ pull-down resistor ratios is required. The SOT523 package offers a compact footprint suitable for space-constrained designs. Consider the 30 mA output current limit and 150 mW power dissipation capabilities during thermal management planning. Verify compatibility with operating temperatures ranging from -55°C to +150°C for the intended application environment.

Part Context

This part belongs to the DDTC (R1≠R2 Series) E family of NPN pre-biased transistors produced by Diodes Incorporated. It serves as the complementary counterpart to the DDTA series PNP types within the same product line. The device utilizes a standardized SOT523 surface-mount package designed for automated assembly processes. It represents a segment of discrete semiconductor solutions focused on simplified biasing configurations.

Replacement Considerations

Direct replacements within the same manufacturer's lineup include other DDTC144 variants with different resistor ratios, such as DDTC144WE-7-F. Cross-manufacturer equivalents should be evaluated based on matching electrical parameters including VCC, IOUT, and package dimensions. Verify that alternative components meet the same RoHS and halogen-free requirements.