DDTC123YKA-7-F

Overview

The DDTC123YKA-7-F is a single NPN digital transistor manufactured by Diodes Incorporated, designed for surface-mount applications. It integrates an NPN bipolar junction transistor with internal biasing resistors within a compact SOT-323 (SC-70) package. The device features a typical base resistor of 2.2 kOhms and an emitter resistor ratio of 1. Key electrical specifications include a maximum collector-emitter voltage of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. The component operates reliably across a temperature range from -55°C to +150°C, ensuring stability in diverse environmental conditions.

Feature Summary

• Integrates NPN transistor with dual biasing resistors for simplified circuit design
• Optimized for high-speed switching applications with low saturation voltage
• Robust thermal performance supporting operation up to 150°C

Applications

• General-purpose switching circuits
• Driver stages for logic interfaces
• Battery protection circuits

Procurement Notes

Verify the specific suffix 'KA' against official Diodes Incorporated documentation to confirm exact binning or tape-and-reel specifications. Ensure compatibility with standard SOT-323 footprints during procurement planning. Confirm RoHS compliance status through the manufacturer's latest declaration before finalizing supply chain agreements.

Selection Notes

Select this component when a single NPN pre-biased transistor with a 2.2 kOhm base resistor is required in an SOT-323 package. Compare the 100 mA collector current and 50 V breakdown voltage against load requirements. Consider the 200 mW power dissipation limit for thermal management in dense PCB layouts.

Part Context

This part belongs to the DDTC123 series of pre-biased transistors from Diodes Incorporated. The series offers various resistor ratios and packaging options to suit different impedance matching needs. The DDTC123YKA-7-F specifically utilizes the SOT-323 form factor, providing a space-efficient solution for modern electronic designs requiring integrated biasing networks.

Replacement Considerations

Direct substitutes may include other DDTC123 variants with identical SOT-323 packaging and similar resistor values, such as DDTC123YCA-7-F or DDTC123JCA-7-F, provided the specific resistance ratios align with the circuit design requirements.