1812J2000393MXTE03

Overview

The Knowles Syfer 1812J2000393MXTE03 is a feed-through multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features a capacitance of 0.039 µF and a DC voltage rating of 200 VDC. The component utilizes X7R dielectric material with a ±20% tolerance. Housed in an 1812 (4532 metric) package, it supports a continuous current rating of 50 mA. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Integrates feed-through architecture to provide effective electromagnetic interference filtering within the capacitor structure.
• Utilizes flexible terminal construction to enhance mechanical reliability and resistance to board stress.
• Employs X7R dielectric characteristics to maintain stable capacitance performance across specified operating temperatures.

Applications

• High-frequency noise suppression in power supply input stages
• Electromagnetic interference filtering in compact electronic assemblies
• Signal integrity protection in high-density circuit boards

Procurement Notes

Verify the specific E03 termination configuration against design requirements to ensure compatibility with soldering profiles. Confirm that the 50 mA continuous current rating aligns with the application's operational load. Check RoHS compliance status for regulatory adherence. Validate package dimensions against PCB footprint specifications prior to procurement.

Selection Notes

Select this component when integrated filtering and space-saving are critical. The feed-through design reduces the need for separate filter components. Ensure the 200 VDC rating exceeds peak circuit voltages. Consider the 1812 package size for available board real estate. Verify thermal stability requirements match the X7R dielectric properties.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, which specializes in high-reliability MLCCs with flexible terminations. The series targets applications requiring robust performance under mechanical stress. The 1812J prefix indicates the 1812 case size and J tolerance code. The MXTE03 suffix denotes specific termination and packaging details.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative feed-through capacitors from the same manufacturer only if they share identical electrical ratings and physical dimensions. Cross-reference datasheets for terminal flexibility and current handling capabilities before substitution.