1812Y5000183MXTE03

Overview

The Knowles Syfer 1812Y5000183MXTE03 is a high-reliability multilayer ceramic capacitor (MLCC) in an 1812 surface-mount package. It features X7R dielectric with a capacitance of 18 nF and a DC voltage rating of 500 VDC. The component offers ±20% tolerance and operates within a temperature range of -55°C to +125°C. It utilizes flexible terminals for enhanced mechanical stability and includes a nickel barrier structure.

Feature Summary

• Flexible terminal design reduces stress on the component during board flexing
• Nickel barrier construction provides robust internal electrode protection
• X7R dielectric ensures stable capacitance across the operating temperature range

Applications

• Automotive electronics requiring AEC-Q200 compliance
• Circuit boards susceptible to mechanical flexing
• High-voltage signal coupling applications

Procurement Notes

Verify the specific suffix 'MXT' against official datasheets to confirm the inclusion of the nickel barrier and flexible terminal specifications, as these are critical for high-reliability automotive and industrial environments. Ensure compatibility with standard reflow soldering profiles for MLCCs with soft terminations.

Selection Notes

Select this component when high voltage handling at 500VDC is required alongside mechanical resilience. The 1812 footprint allows for higher capacitance density compared to smaller packages. Consider the X7R characteristics for general-purpose decoupling where moderate temperature stability is sufficient.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, designed specifically for applications involving board flex or vibration. The 'Y' prefix typically denotes high reliability or specific terminal configurations within the manufacturer's catalog, distinguishing it from standard general-type MLCCs.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 500V rating, 18nF value, and X7R dielectric. Verify that any replacement also features flexible terminals and nickel barriers if mechanical stress resistance is a design constraint.