NCV8405STT3G

Overview

The NCV8405STT3G is a self-protected low-side power distribution switch manufactured by onsemi. It operates with a supply voltage up to 40 V and provides a single output channel. The device features a maximum on-resistance of 210 mOhms and a current limit of 6 A. It includes protection against overcurrent, overtemperature, and reverse polarity conditions. The component is qualified to AEC-Q100 standards for automotive applications and operates within a temperature range of -40°C to +150°C. It is housed in an SOT-223-3 surface-mount package.

Feature Summary

• Integrated self-protection mechanisms including overcurrent, overtemperature, and reverse polarity handling
• Automotive-grade reliability certified under the AEC-Q100 standard
• Low on-resistance design for efficient power distribution in load switching applications

Applications

• Automotive lighting systems
• Power distribution units in vehicle electronics
• General purpose load switching in automotive environments

Procurement Notes

Verify the specific suffix 'STT3G' against official datasheets to confirm packaging and reel specifications. Ensure the part number matches the required AEC-Q100 qualification status for your target application. Cross-reference the manufacturer's latest documentation to confirm availability and any potential product change notices affecting this specific variant.

Selection Notes

Select this component when a robust, single-channel low-side switch with integrated fault protection is required. The 6 A current limit and 210 mOhm resistance suit moderate power loads. Consider the SOT-223-3 package for space-constrained designs. Verify that the 40 V rating aligns with the system bus voltage and that the thermal performance meets the application's dissipation requirements.

Part Context

This part belongs to the NCV8405A series of self-protected power switches designed for automotive use. It complements other devices like the NCV8405ASTT3G, differing primarily in manufacturing or packaging details rather than core electrical function. The series addresses the need for reliable load management in harsh automotive electrical environments.

Replacement Considerations

The NCV8405ASTT3G is a documented alternative within the same family. Verify pinout compatibility and ensure the substitute meets the same AEC-Q100 qualification and thermal specifications before implementation.