1206Y1000473MSTE03

Overview

The Knowles Syfer 1206Y1000473MSTE03 is a surface-mount X2Y capacitor with a capacitance of 2.2 nF, rated for 100 V DC. It utilizes an X7R dielectric material and maintains a tolerance of ±20%. The component features a 1206 (3216 metric) package size and incorporates FlexiCap technology with a nickel barrier to enhance mechanical reliability. It is qualified under the AEC-Q200 standard for automotive applications.

Feature Summary

• X2Y architecture providing integrated common-mode and differential-mode noise suppression within a single compact footprint
• FlexiCap construction with nickel barrier end terminations designed to improve resistance to board flex stress and cracking

Applications

• Automotive electronics requiring AEC-Q200 compliance
• High-speed digital signal lines needing EMI filtering
• Power supply input/output stages for noise attenuation

Procurement Notes

Verify the specific suffix STE03 against official datasheets to confirm the presence of the nickel barrier and FlexiCap termination structure. Ensure the X7R dielectric characteristics align with the thermal requirements of the target application environment. Confirm that the 1206 package dimensions match the PCB land pattern specifications precisely.

Selection Notes

Select this component when space constraints require combined filtering functions in a single device. The X2Y topology reduces component count compared to discrete RC or LC filters. Verify that the 100V rating exceeds the peak voltage transients expected in the circuit to ensure long-term reliability and prevent dielectric breakdown.

Part Context

This part belongs to the Knowles Syfer 1206Y series of X2Y capacitors. These components are engineered for high-reliability environments, particularly in the automotive sector. The series integrates three terminals into one body to provide superior electromagnetic interference suppression while maintaining a small profile suitable for dense modern circuit boards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative X2Y devices by matching capacitance, voltage rating, package size, and termination style.