1806Y0250474MXTE07

Overview

The Knowles Syfer 1806Y0250474MXTE07 is a multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features an 1806 case size and utilizes X7R dielectric material to provide stable capacitance characteristics across varying temperatures. The component offers a nominal capacitance of 0.47 µF with a tolerance of ±20%. It is rated for a maximum DC voltage of 25 VDC. This specific part number identifies a three-terminal EMI filter configuration, incorporating a nickel barrier structure to enhance electromagnetic interference suppression capabilities in compact circuit designs.

Feature Summary

• Three-terminal architecture designed for effective electromagnetic interference filtering
• Nickel barrier construction integrated within the electrode structure
• X7R dielectric material providing reliable performance over a wide temperature range
• Surface mount package optimized for automated assembly processes

Applications

• High-frequency noise suppression in sensitive signal lines
• Power supply input filtering for digital logic circuits
• Electromagnetic compatibility enhancement in communication modules
• Decoupling applications requiring low impedance paths at high frequencies

Procurement Notes

Verify the complete part number including all suffixes against official manufacturer documentation to ensure correct termination and packaging specifications. Confirm that the three-terminal EMI filter variant matches the intended circuit topology, as standard two-terminal capacitors differ significantly in function. Check for RoHS compliance status and specific environmental certifications required by the target market regulations before finalizing procurement orders.

Selection Notes

Select this component when circuit design requires integrated decoupling and EMI filtering in a single surface mount footprint. The three-terminal design provides superior high-frequency attenuation compared to standard two-terminal capacitors. Ensure the PCB layout supports the specific pad configuration required for three-terminal devices to realize the intended shielding effectiveness. Verify that the 25V rating exceeds the maximum operating voltage with adequate margin.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability ceramic capacitors with flexible terminations. The series addresses mechanical stress issues common in rigid MLCCs during thermal cycling. The 1806Y prefix indicates the case dimensions and voltage class within the broader product family. These components are engineered for demanding electronic environments where space constraints and signal integrity are critical design parameters.

Replacement Considerations

Direct substitutes must match the three-terminal EMI filter topology, not just capacitance and voltage ratings. Verify that alternative parts support the same 1806 footprint and nickel barrier construction. Standard two-terminal capacitors cannot replace this component without significant circuit redesign due to different grounding and filtering mechanisms.