1812J1000473MJTE03

Overview

The Knowles Syfer 1812J1000473MJTE03 is a feed-through multilayer ceramic capacitor designed for surface mount applications. It features a capacitance of 0.047 µF with a voltage rating of 100 V and a tolerance of ±20%. The component utilizes an X7R dielectric material, ensuring stable performance across a temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it integrates a 50 mA current-carrying capability within its structure.

Feature Summary

• Integrates EMI suppression functionality through feed-through architecture
• Supports high current handling up to 50 mA within the capacitor body
• Utilizes X7R dielectric for reliable operation across wide temperature ranges

Applications

• High-frequency noise filtering in sensitive electronic circuits
• EMI suppression in power supply input stages
• Signal integrity protection in RF communication modules

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm the integrated feed-through characteristics and current ratings. Ensure that the selected variant matches the required thermal stability and voltage derating parameters for the target application environment.

Selection Notes

Select this component when simultaneous decoupling and EMI filtering are required in a single footprint. Evaluate the 50 mA current limit against peak circuit loads to prevent thermal degradation. Confirm compatibility with reflow soldering profiles specified for X7R dielectrics in the 1812 package size.

Part Context

This part belongs to the Knowles Syfer series of application-specific MLCCs. Unlike standard capacitors, this model incorporates conductive pathways to manage electromagnetic interference directly at the component level. It serves as a specialized solution for compact designs requiring robust noise attenuation without additional discrete filter components.

Replacement Considerations

Public confirmed substitute part numbers: 1812J1000473MJT.