1806J0500393MJTE07

Overview

The Knowles Syfer 1806J0500393MJTE07 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 0.039 µF with a tolerance of ±20% and a rated DC voltage of 50V. The component utilizes X7R dielectric material, ensuring stability across an operating temperature range of -55°C to +125°C. It supports a continuous current rating of 2 A and conforms to the 1806 (4516 metric) package dimensions.

Feature Summary

• Integrated feed-through architecture providing effective electromagnetic interference filtering in a compact surface-mount form factor.

Applications

• High-frequency noise suppression in electronic circuits
• Power line filtering for sensitive components
• EMI mitigation in compact SMD assemblies

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to confirm terminal configurations and termination materials. Ensure that the selected variant matches the required current handling and thermal specifications for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when a combined power handling and filtering capability is required within a standard 1806 footprint. The X7R dielectric offers a balance of capacitance density and temperature stability suitable for general-purpose high-reliability applications requiring 50V ratings.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which integrates passive filtering functions directly into the component structure. These devices are engineered to replace traditional discrete filter networks, thereby reducing board space consumption and improving signal integrity in dense PCB layouts.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with alternative feed-through capacitors by matching capacitance, voltage rating, current handling, and physical dimensions.