DDTC123TE-7

Overview

The DDTC123TE-7 is an NPN pre-biased transistor from the R1-only series, housed in a SOT523 surface-mount package. It integrates a single base resistor (R1) with a nominal value of 2.2 kΩ. The device features a collector-emitter breakdown voltage (BVCEO) of 50 V and supports a maximum continuous collector current (IC) of 100 mA. Electrical characteristics include a DC current transfer ratio (hFE) ranging from 100 to 600 at IC = 1 mA, and a gain-bandwidth product (fT) of 250 MHz. Thermal performance specifies a power dissipation of 150 mW and a junction-to-ambient thermal resistance of 833 °C/W. Operating temperature ranges from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable small-signal switching.
• Integrated single biasing resistor (R1 only) simplifies circuit design.
• AEC-Q101 qualified and PPAP capable for automotive applications.
• Manufactured in IATF 16949 certified facilities.

Applications

• Automotive logic interface circuits requiring specific change control.
• General-purpose digital switching applications.
• Low-voltage signal processing stages.

Procurement Notes

Verify the complete part number against official Diodes Incorporated documentation before ordering. Confirm that the suffix matches the required packaging quantity and compliance status. Ensure the component meets the specific automotive qualification standards if intended for such environments. Cross-reference the marking code and date code requirements with your assembly specifications.

Selection Notes

Select this component when a single integrated base resistor is sufficient for the biasing requirements. Compare the 2.2 kΩ internal resistance against external resistor options to determine space savings. Verify that the 100 mA collector current rating accommodates the peak load demands. Check the SOT523 footprint compatibility with the target PCB layout constraints.

Part Context

This component belongs to the DDTC (R1-ONLY SERIES) E family, which provides NPN pre-biased transistors with varying internal resistor values. The 'E' designation indicates the SOT523 package variant. Other members in this series include DDTC113TE through DDTC125TE, offering different nominal resistances from 1 kΩ to 200 kΩ within the same physical form factor.

Replacement Considerations

Direct substitutes include other DDTC123 variants with identical electrical parameters but potentially different packages or suffixes. Verify pinout compatibility and thermal resistance differences when considering alternative manufacturers. Ensure any replacement maintains the AEC-Q101 qualification if used in automotive contexts.