1812J5000223MJTE03

Overview

The Knowles Syfer 1812J5000223MJTE03 is a feed-through multilayer ceramic capacitor designed for surface mount applications. It features a capacitance of 0.022 µF with a DC voltage rating of 500 VDC and a tolerance of ±20%. The component utilizes X7R dielectric material, ensuring stability across an operating temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it supports a maximum current of 50 mA. This device integrates EMI filtering capabilities directly into the capacitor structure.

Feature Summary

• Integrated feed-through architecture combining capacitance and EMI suppression
• High voltage handling capability suitable for power line filtering
• Surface mount design compatible with automated assembly processes

Applications

• Electromagnetic interference filtering in high-voltage circuits
• Power supply input/output stages requiring combined decoupling and noise reduction
• Automotive electronics systems demanding robust EMI performance

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to confirm terminal configuration and current ratings. Ensure compatibility with PCB pad layouts designed for feed-through components rather than standard MLCCs. Cross-reference datasheet revisions to validate thermal and electrical specifications prior to integration.

Selection Notes

Select this component when board space constraints require simultaneous high-voltage capacitance and EMI filtration. Evaluate the 50 mA current limit against circuit requirements to prevent overheating. Confirm that the X7R dielectric characteristics align with the application's temperature stability needs compared to Class 1 alternatives.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, which merges passive filtering functions into a single surface-mount package. Unlike discrete inductors or standard capacitors, these devices provide inherent common-mode noise attenuation while maintaining compact form factors ideal for dense electronic assemblies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout compatibility and physical dimensions before considering alternative manufacturers.