1806Y0500393MXTE07

Overview

The Knowles Syfer 1806Y0500393MXTE07 is a three-terminal EMI filter capacitor in an 1806 (4516 metric) surface-mount package. It features a capacitance of 39 nF with a ±20% tolerance and a DC voltage rating of 50 VDC. The dielectric material is X7R, providing stable performance across an operating temperature range of -55°C to +125°C. This component utilizes the FlexiCap construction with a nickel barrier electrode structure, designed for effective electromagnetic interference suppression in compact electronic assemblies.

Feature Summary

• Three-terminal architecture for enhanced common-mode noise attenuation
• FlexiCap construction with nickel barrier electrodes for improved reliability
• X7R dielectric material ensuring thermal stability within specified limits

Applications

• Electromagnetic interference filtering in high-density circuit boards
• Power supply input/output decoupling for noise reduction
• Signal line protection in sensitive analog or digital circuits

Procurement Notes

Verify the complete part number including suffixes to ensure correct termination and packaging specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference datasheet revisions to validate electrical characteristics against current design requirements.

Selection Notes

Select this component when space-constrained designs require superior EMI suppression compared to standard two-terminal capacitors. The three-terminal configuration offers lower impedance paths for high-frequency noise. Ensure PCB layout accommodates the specific terminal arrangement to maximize filtering effectiveness.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in multilayer ceramic capacitors featuring flexible internal structures. The series targets applications demanding high reliability and robust mechanical performance under thermal cycling conditions.

Replacement Considerations

Direct substitutes must match the 1806 footprint, 39 nF capacitance, 50 V rating, and three-terminal EMI filter topology. Verify that alternative parts support X7R dielectric characteristics and compatible termination materials for equivalent soldering profiles.