DDTC125TE-7-F

Overview

The DDTC125TE-7-F is an NPN pre-biased transistor from the DDTC (R1-ONLY SERIES) E, manufactured by Diodes Incorporated. It features epitaxial planar die construction with a built-in biasing resistor R1 of 200 kΩ nominal value. The device is housed in a SOT-523 surface-mount package and supports a collector-emitter voltage (VCEO) of 50 V and continuous collector current (IC) of 100 mA. Power dissipation is rated at 150 mW, with an operating temperature range spanning -55°C to +150°C. The component has a DC current transfer ratio (hFE) ranging from 100 to 600 and a gain-bandwidth product (fT) of 250 MHz.

Feature Summary

• Epitaxial planar construction with integrated single base resistor for simplified circuit design
• AEC-Q101 qualified and PPAP capable for automotive applications requiring specific change control
• Totally lead-free, halogen-free, and antimony-free compliant with RoHS 3 standards

Applications

• Automotive circuits requiring AEC-Q101 qualification and IATF 16949 manufacturing certification
• General-purpose switching and amplification in consumer electronics
• Driver circuits for low-power loads utilizing pre-biased NPN configuration

Procurement Notes

Verify component status before procurement as the DDTC125TE-7-F is listed as obsolete in official documentation. Confirm availability through authorized distributors or secondary markets if immediate sourcing is required. Ensure that any replacement components maintain equivalent electrical characteristics and packaging specifications to guarantee compatibility with existing designs.

Selection Notes

Select this component when a 200 kΩ base resistor is specifically required for NPN pre-biasing applications. Consider alternative part numbers within the DDTC series if different resistance values are needed. Verify that the SOT-523 package dimensions align with the target PCB layout constraints. Check thermal management requirements against the specified power dissipation limits under expected ambient conditions.

Part Context

This component belongs to the DDTC (R1-ONLY SERIES) E family, which includes various NPN pre-biased transistors differentiated primarily by their internal base resistor values. The series shares common mechanical and electrical characteristics such as the SOT-523 package and 50 V voltage rating. Other members include DDTC113TE through DDTC144TE, offering resistor options from 1 kΩ to 100 kΩ.

Replacement Considerations

Direct substitutes may include other NPN pre-biased transistors with similar 200 kΩ base resistors and SOT-523 packaging. Verify pinout compatibility and electrical parameters such as VCEO, IC, and hFE. Consult manufacturer cross-reference lists for officially recommended replacements.