1812Y1000223MSTE03

Overview

The Knowles Syfer 1812Y1000223MSTE03 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 0.022 µF with a voltage rating of 100 V and a maximum current handling capacity of 50 mA. The component utilizes an X7R dielectric material and is housed in a standard 1812 (4532 metric) package. It incorporates FlexiCap technology with a nickel barrier to enhance mechanical reliability under board flex conditions. The device is qualified to the AEC-Q200 automotive grade standard, ensuring performance stability across a wide operating temperature range.

Feature Summary

• Integrated feed-through architecture provides effective common-mode noise attenuation within a compact footprint.
• FlexiCap construction with nickel barrier endures mechanical stress from PCB bending without terminal fracture.
• AEC-Q200 qualification ensures robustness and long-term reliability for demanding automotive electronic environments.

Applications

• Automotive infotainment system power line filtering
• Noise suppression on high-speed data interfaces
• Power distribution networks in board-flex sensitive modules

Procurement Notes

Verify the specific suffix MSTE03 against official datasheets to confirm the inclusion of the nickel barrier and FlexiCap termination structure. Ensure design compatibility with the 50 mA current limit and 100 V DC rating. Confirm that the feed-through topology aligns with the circuit's grounding and signal routing requirements before finalizing procurement specifications.

Selection Notes

Select this component when simultaneous high-frequency noise reduction and mechanical durability are required. The feed-through design offers superior EMI performance compared to standard MLCCs in constrained spaces. Verify that the application does not exceed the rated current or voltage limits. Consider the AEC-Q200 certification if the deployment involves automotive systems requiring strict quality standards.

Part Context

This part belongs to the Knowles Syfer 1812Y series, which specializes in high-reliability ceramic capacitors for automotive applications. The series integrates advanced termination technologies to address mechanical failure modes common in traditional MLCCs. This specific model represents the feed-through variant, distinct from standard decoupling capacitors by its internal conductive path designed for noise shunting rather than simple charge storage.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Replacement requires matching the feed-through topology, 1812 package dimensions, and electrical ratings precisely.