1812Y1000392MSTE03

Overview

The Knowles Syfer 1812Y1000392MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a capacitance of 3900 pF with a DC voltage rating of 100 VDC and an X7R dielectric material offering ±20% tolerance. The component utilizes the 1812 (4532 metric) case size and incorporates FlexiCap technology with a nickel barrier to enhance mechanical robustness. It is qualified to AEC-Q200 standards, ensuring suitability for automotive environments.

Feature Summary

• Incorporates FlexiCap technology with a nickel barrier to provide enhanced board flex sensitivity protection and mechanical durability.
• Constructed as an X2Y capacitor structure, providing integrated common-mode noise filtering capabilities within a single compact package.
• Qualified to AEC-Q200 automotive standards, ensuring reliability and performance consistency in demanding vehicular electronic systems.

Applications

• Automotive electronics requiring board-flex resistant components
• High-frequency noise suppression circuits
• Common-mode EMI filtering in sensitive signal lines

Procurement Notes

Verify the complete part number including the suffix to confirm specific packaging and terminal configurations. Ensure compatibility with AEC-Q200 requirements if used in automotive designs. Cross-reference datasheet specifications for thermal handling and soldering profiles prior to integration into production assemblies.

Selection Notes

Select this component when board flex resistance is critical due to its specialized electrode construction. The X2Y architecture offers superior noise attenuation compared to standard MLCCs in a similar footprint. Consider the X7R temperature stability characteristics against circuit operating ranges to ensure consistent capacitance performance under varying thermal conditions.

Part Context

This component belongs to the Knowles Syfer 1812Y series, which specializes in high-capacitance, high-voltage MLCCs featuring proprietary FlexiCap technology. The series is engineered to address mechanical failure modes associated with rigid terminations in flexible printed circuit boards, particularly within the automotive sector where vibration and stress are prevalent.

Replacement Considerations

Direct substitutes require matching the 1812 case size, 100V rating, 3900pF value, X7R dielectric, and AEC-Q200 qualification. Verify that alternative parts also incorporate FlexiCap or equivalent board-flex protection technologies to maintain mechanical reliability in the target application environment.