1812Y0500184MSTE03

Overview

The Knowles Syfer 1812Y0500184MSTE03 is a multilayer ceramic capacitor (MLCC) in the 1812 (4532 metric) surface-mount package. It features a capacitance of 0.18 µF with a DC voltage rating of 50 VDC and a tolerance of ±20%. Utilizing X7R dielectric material, this component operates within a temperature range of -55°C to +125°C. The device incorporates FlexiCap technology with a nickel barrier for enhanced mechanical reliability and is certified to AEC-Q200 standards.

Feature Summary

• X2Y architecture providing integrated common-mode noise suppression
• FlexiCap termination design with nickel barrier for improved flexural strength
• AEC-Q200 qualification for automotive-grade reliability

Applications

• Automotive electronic circuit filtering
• Common-mode noise suppression in vehicle networks
• High-reliability power supply decoupling

Procurement Notes

Verify the specific suffix MSTE03 against official Knowles Syfer documentation to confirm the inclusion of the nickel barrier and X2Y configuration. Ensure compatibility with automated pick-and-place equipment due to the 1812 footprint dimensions. Confirm RoHS compliance status through the manufacturer's current product declaration before final procurement integration.

Selection Notes

Select this component when high mechanical robustness is required alongside EMI filtering capabilities. The X2Y structure reduces the need for discrete components by combining series and shunt capacitance in one package. Verify that the 50V rating meets the peak transient voltage requirements of the target application circuit.

Part Context

This part belongs to the Knowles Syfer FlexiCap family, designed specifically for demanding environments. The 1812 case size allows for higher capacitance values compared to smaller footprints while maintaining standard SMT mounting profiles. The X2Y variant integrates three terminals to provide superior noise attenuation compared to standard two-terminal capacitors.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 50V rating, 0.18µF value, and X2Y topology. Verify terminal metallurgy compatibility if lead-free soldering processes are mandated.