1812J0500223MJTE03

Overview

The Knowles Syfer 1812J0500223MJTE03 is a feed-through multilayer ceramic capacitor designed for surface-mount technology. It features a capacitance of 0.022 µF with a DC voltage rating of 50 VDC and a tolerance of ±20%. The component utilizes C0G (NP0) dielectric material, ensuring stable performance across an operating temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it includes an integrated 50 mA fuse element for circuit protection.

Feature Summary

• Integrates a built-in fuse element for overcurrent protection within the capacitor structure
• Utilizes C0G (NP0) dielectric for high stability and low loss characteristics
• Designed as a surface-mount device for automated assembly processes

Applications

• High-frequency signal filtering in communication systems
• Power supply input stages requiring combined decoupling and fusing
• Sensitive electronic circuits needing compact overcurrent protection

Procurement Notes

Verify the specific suffix 'MJTE03' against official manufacturer documentation to confirm the integrated fuse current rating and termination specifications. Ensure compatibility with PCB footprint dimensions for the 1812 package size. Cross-reference datasheet revisions to validate thermal handling capabilities during soldering processes.

Selection Notes

Select this component when space-constrained designs require simultaneous high-frequency filtering and circuit protection. The C0G dielectric ensures minimal capacitance variation with temperature and voltage changes. Confirm that the 50 mA internal fuse rating aligns with the maximum allowable current for the protected signal line without causing nuisance tripping during normal operation.

Part Context

This part belongs to the Knowles Syfer 1812J series of high-reliability MLCCs. It represents a specialized category of feed-through capacitors that combine passive filtering functions with active protection mechanisms. The series is engineered for demanding environments where component count reduction and reliability are critical design priorities.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify if generic 1812 feed-through capacitors with similar electrical ratings can functionally replace this unit, noting that the integrated fuse characteristic may be unique to this specific configuration.