1812J0500125MXTE07

Overview

The Knowles Syfer 1812J0500125MXTE07 is a feedthrough multilayer ceramic capacitor (MLCC) in an 1812 surface-mount package. It features a capacitance of 1.2 µF with a tolerance of ±20% and a DC voltage rating of 50 VDC. The component utilizes X7R dielectric material, ensuring stable performance across a temperature range of -55°C to +125°C. Designed for high-frequency noise suppression, this part integrates shielding characteristics within the MLCC structure to provide effective electromagnetic interference filtering in compact electronic assemblies.

Feature Summary

• Integrated feedthrough architecture for enhanced electromagnetic interference suppression
• X7R dielectric material providing stable capacitance over wide temperature variations
• Surface-mount 1812 form factor suitable for dense circuit board layouts

Applications

• High-frequency noise filtering in power supply lines
• Electromagnetic interference suppression in communication modules
• Signal integrity protection in sensitive digital circuits

Procurement Notes

Verify the complete ordering code including the E07 suffix against official manufacturer documentation to ensure correct packaging configuration. Confirm that the feedthrough variant matches the specific shielding requirements of the target application. Cross-reference the RoHS compliance status with current regulatory standards before finalizing procurement decisions.

Selection Notes

Select this component when integrated shielding is required within a standard MLCC footprint. The 1.2 µF value at 50 VDC supports decoupling applications where space is constrained. Ensure the PCB layout accommodates the specific terminal configuration of the feedthrough design rather than standard two-terminal capacitors.

Part Context

This part belongs to the Knowles Syfer XT series of general type MLCCs. The XT designation indicates a standard termination style compatible with typical reflow soldering processes. The 1812 case size allows for higher capacitance values compared to smaller packages while maintaining compatibility with automated placement equipment used in modern manufacturing lines.

Replacement Considerations

Direct substitutes must match the 1812 feedthrough form factor and 1.2 µF ±20% 50V specifications. Verify terminal compatibility as feedthrough devices differ electrically from standard parallel-plate MLCCs. Generic X7R capacitors without feedthrough shielding cannot replace this component in EMI-sensitive applications.