DDTB122LC-7-F

Overview

The DDTB122LC-7-F is a PNP pre-biased transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction and integrated biasing resistors within a surface-mount SOT-23 package. The device supports a maximum collector-emitter voltage of -40 V and a continuous collector current of -500 mA, with a power dissipation rating of 200 mW at +25°C. Internal resistor values are nominally R1 = 0.22 kΩ and R2 = 10 kΩ. It operates across a temperature range of -55°C to +150°C.

Feature Summary

• Integrates built-in biasing resistors to simplify circuit design
• Utilizes epitaxial planar die construction for reliability
• Complies with RoHS standards and is halogen-free

Applications

• General-purpose switching applications
• Driver circuits for loads requiring PNP control
• Logic interface circuits

Procurement Notes

This component is officially marked as obsolete and discontinued by the manufacturer. Verification of availability requires direct contact with Diodes Incorporated or authorized representatives. Standard procurement channels may not support this part number due to its end-of-life status.

Selection Notes

Select this component only if legacy compatibility is required. Verify that the -40 V collector-emitter breakdown voltage and -500 mA current limits meet the specific application requirements. Ensure the SOT-23 footprint matches the existing board layout constraints.

Part Context

The DDTB122LC-7-F belongs to the DDTB series of PNP pre-biased transistors from Diodes Incorporated. This series provides complementary NPN types under the DDTD designation. The 'LC' suffix specifically denotes the internal resistor configuration of 0.22 kΩ and 10 kΩ.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Contact the manufacturer directly for potential obsolescence management options.