1812Y5000392MXTE03

Overview

The Knowles Syfer 1812Y5000392MXTE03 is a high-reliability multilayer ceramic capacitor (MLCC) in the FlexiCap series. It features an X7R dielectric with a capacitance of 3.9 nF and a DC voltage rating of 500 VDC. The component utilizes a flexible termination system to enhance mechanical robustness against board bending and thermal cycling. It operates within a temperature range of -55°C to +125°C and offers a tolerance of ±20%. Packaged in a standard 1812 (4532 metric) surface-mount case, it is designed for applications requiring superior reliability and space qualification.

Feature Summary

• Incorporates proprietary flexible termination material to accommodate significant board bending without cracking.
• Provides increased reliability and mechanical performance compared to conventional capacitors.
• Qualified for space applications and recognized with the Queen’s Award for Innovation.

Applications

• Space electronics and satellite systems
• High-reliability industrial equipment
• Aerospace avionics

Procurement Notes

Verify the specific suffix 'E03' against official datasheets to confirm packaging details and RoHS compliance status. Ensure compatibility with existing assembly processes, as conversion to FlexiCap typically requires no changes. Confirm availability through authorized distributors due to potential supply constraints on specialized high-reliability components.

Selection Notes

Select this component when high mechanical resilience is required alongside stable electrical performance in harsh environments. The X7R dielectric provides moderate capacitance stability over temperature, suitable for general filtering or coupling where flexibility prevents solder joint failure. Consider the 1812 footprint for board space optimization while maintaining high voltage handling capabilities.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, which specializes in MLCCs with flexible terminations. The series is engineered to withstand extreme mechanical stress, including thermal cycling exceeding 1,000 times between -55°C and +125°C. It represents a solution for applications where standard rigid terminations are prone to cracking under strain.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 500V rating, 3.9nF capacitance, X7R dielectric, and flexible termination technology. Verify that any alternative component holds equivalent space qualification and mechanical reliability certifications to ensure seamless integration without redesign.

FAQ

What is the primary advantage of the FlexiCap termination?

The flexible termination allows the capacitor to accommodate greater degrees of board bending and thermal cycling without cracking, significantly improving mechanical reliability.

Is this component qualified for space applications?

Yes, the Syfer/FlexiCap termination technology has been qualified for space applications.