DDTC143TE-7-F

Overview

The DDTC143TE-7-F is an NPN pre-biased transistor from Diodes Incorporated, housed in a SOT523 surface-mount package. It features an epitaxial planar die construction with a built-in biasing resistor (R1) of 4.7 kΩ nominal value. The device supports a collector-emitter voltage (VCEO) and collector-base voltage (VCBO) of 50 V, with a maximum collector current (IC) of 100 mA. DC current gain (hFE) ranges from 100 to 600 at IC = 1 mA. The component operates within a temperature range of -55°C to +150°C and has a power dissipation rating of 150 mW. It is AEC-Q101 qualified for automotive applications.

Feature Summary

• Built-in single biasing resistor (R1 only) simplifies circuit design by reducing external component count.
• Epitaxial planar die construction ensures reliable performance and stability.
• AEC-Q101 qualified and PPAP capable, suitable for automotive applications requiring specific change control.
• Totally lead-free, halogen-free, and antimony-free, complying with RoHS directives.

Applications

• Automotive electronics systems requiring AEC-Q101 qualified components.
• General-purpose switching applications utilizing pre-biased NPN transistors.
• Driver circuits where simplified biasing networks are required.

Procurement Notes

Verify the part number DDTC143TE-7-F against official Diodes Incorporated documentation to confirm active status and compliance markings. Ensure that the ordering suffix '-7-F' corresponds to the specified reel size and tape width for automated assembly processes. Confirm that the application environment meets the specified thermal and electrical ratings defined in the datasheet.

Selection Notes

Select this component when a compact NPN pre-biased transistor with a 4.7 kΩ base resistor is required in a SOT523 package. Consider the 50 V voltage rating and 100 mA current capability for appropriate load handling. Verify compatibility with automotive quality standards if used in vehicle-related systems, as this part is AEC-Q101 qualified.

Part Context

This part belongs to the DDTC (R1-ONLY SERIES) E family of NPN pre-biased transistors. It shares the same package and general characteristics as other variants in the series, differing primarily in the nominal resistance value of the internal biasing resistor R1. The 'E' suffix indicates compliance with environmental standards such as RoHS and halogen/antimony-free requirements.

Replacement Considerations

Direct substitutes within the same series include DDTC113TE-7-F, DDTC123TE-7-F, DDTC114TE-7-F, DDTC124TE-7-F, DDTC144TE-7-F, DDTC115TE-7-F, and DDTC125TE-7-F, provided the different R1 values are acceptable for the circuit design. Cross-brand replacements require verification of pinout, electrical parameters, and package dimensions.