1806Y0250334MXTE07

Overview

The Knowles Syfer 1806Y0250334MXTE07 is a surface-mount feedthrough multilayer ceramic capacitor (MLCC) designed for electromagnetic interference (EMI) filtering. It features an 1806 case size with a capacitance of 0.33 µF and a DC voltage rating of 25 VDC. The component utilizes X7R dielectric material, providing stable performance across temperature variations. Tolerance is specified at ±20%. Key construction details include a Nickel Barrier termination system and FlexiCap technology to enhance mechanical reliability against cracking during soldering processes.

Feature Summary

• Integrated EMI filtering capability within a compact surface-mount footprint
• FlexiCap termination technology provides enhanced resistance to mechanical stress and thermal shock
• Nickel barrier electrode structure ensures reliable solderability and long-term stability

Applications

• High-frequency signal line noise suppression in consumer electronics
• Power supply input/output filtering for portable devices
• EMI mitigation in automotive infotainment and control modules

Procurement Notes

Verify the specific suffix configuration against official Knowles Syfer documentation to ensure compatibility with required termination styles and flex capabilities. Confirm RoHS compliance status through current manufacturer declarations. Cross-reference the Mouser part number 843-1806y0250334mxte07 or DigiKey identifiers for accurate sourcing channels. Ensure storage conditions meet moisture sensitivity level requirements prior to reflow assembly.

Selection Notes

Select this component when high capacitance density is required in an 1806 package for EMI applications. The X7R dielectric offers a balance of cost and performance suitable for general-purpose filtering. Consider the FlexiCap feature if the design involves rigid PCB layouts prone to warping. Compare against standard MLCCs if superior mechanical robustness under thermal cycling is necessary for the target environment.

Part Context

This part belongs to the Knowles Syfer Y-series feedthrough capacitors, specialized for EMI suppression. Unlike standard two-terminal MLCCs, these components integrate shielding structures to contain electromagnetic fields. The series supports various case sizes, with the 1806 variant offering a compromise between board space efficiency and filtering capacity for mid-range noise frequencies.

Replacement Considerations

Direct substitutes require matching the 1806 case size, 0.33 µF capacitance, 25 VDC rating, and X7R dielectric. Verify that alternative parts support the same FlexiCap or equivalent flexible termination technology to prevent mechanical failure. Check for identical nickel barrier plating specifications to ensure compatible soldering profiles.