1806J0500821MCTE01

Overview

The Knowles Syfer 1806J0500821MCTE01 is a surface-mount feed-through capacitor designed for EMI suppression. It features a capacitance of 820 pF with a ±20% tolerance and a DC voltage rating of 50 VDC. The component utilizes C0G dielectric material and operates within a temperature range of -55°C to +125°C. Housed in an 1806 (4516 metric) package, it measures 4.5 mm in length, 1.6 mm in width, and 1.3 mm in height. It includes a nickel barrier termination and supports a current rating of 300 mA.

Feature Summary

• Three-terminal feed-through architecture providing effective electromagnetic interference filtering
• Nickel barrier termination structure ensuring reliable solderability and connection integrity
• C0G dielectric composition maintaining stable electrical performance across the operating temperature range

Applications

• High-frequency signal line filtering in electronic circuits
• Power supply input/output noise suppression
• EMI mitigation in compact surface-mount assemblies

Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct termination and packaging specifications. Confirm that the 50V DC rating and 300mA current handling meet the specific circuit requirements. Check for RoHS compliance status in the latest datasheet before finalizing procurement decisions.

Selection Notes

Select this component when a three-terminal filter topology is required for EMI reduction in space-constrained designs. The 1806 footprint offers a balance between capacitance value and physical size. Ensure the application voltage does not exceed the 50V DC rating and that the current load remains within the 300mA limit for optimal reliability.

Part Context

This component belongs to the Knowles Syfer feed-through capacitor series, which integrates capacitor functionality with shielding to minimize parasitic inductance. These devices are engineered for high-performance filtering applications where standard MLCCs may exhibit insufficient attenuation due to lead inductance.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.