1806Y0250184MJTE07

Overview

The Knowles Syfer 1806Y0250184MJTE07 is a Surface Mount Device Multilayer Ceramic Capacitor (MLCC) designed for EMI filtering applications. It features a 1806 case size with a rated DC voltage of 25V and a capacitance value of 180nF. The component utilizes X7R dielectric material, providing a tolerance of ±20%. A key structural characteristic is the FlexiCap/Nickel Barrier termination system, which enhances mechanical reliability under thermal stress. This specific part number denotes a 3-terminal configuration, functioning as an integrated EMI filter within the capacitor body.

Feature Summary

• Incorporates a 3-terminal architecture to function as an integrated EMI filter within the capacitor structure.
• Utilizes FlexiCap/Nickel Barrier terminations to provide enhanced mechanical robustness against thermal cycling stresses.
• Employs X7R dielectric material to maintain stable capacitance performance across standard operating temperature ranges.

Applications

• High-frequency noise suppression in sensitive electronic circuits
• Power supply input/output filtering stages
• Signal line protection in communication equipment

Procurement Notes

Verify the complete part number including the suffix to ensure correct termination style and terminal count. Confirm that the 3-terminal EMI filter configuration matches the schematic requirements, as standard 2-terminal capacitors are electrically distinct. Check RoHS compliance documentation for specific environmental declarations required by your manufacturing facility. Ensure the 1806 footprint dimensions align with the PCB layout constraints.

Selection Notes

Select this component when both decoupling capacitance and high-frequency noise attenuation are required in a single package. The 3-terminal design offers superior high-frequency performance compared to standard 2-terminal MLCCs due to reduced parasitic inductance. Consider the FlexiCap termination if the application involves significant thermal expansion mismatch between the component and the substrate. Evaluate the X7R dielectric stability against the circuit's voltage coefficient requirements.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability ceramic capacitors. The series is engineered to address common failure modes in surface mount technology, such as cracking during reflow soldering or board flexing. The 1806Y prefix indicates the physical dimensions and voltage rating class, while the MJTE07 suffix specifies the capacitance, tolerance, dielectric type, and terminal construction.

Replacement Considerations

Direct substitutes must match the 3-terminal EMI filter topology and 1806 footprint. Standard 2-terminal 1806 capacitors are not electrically equivalent replacements. Verify that alternative parts offer comparable Nickel Barrier termination characteristics to maintain mechanical reliability in high-vibration environments.