1812Y0500404METE03

Overview

The Knowles Syfer 1812Y0500404METE03 is a surface-mount X2Y feedthrough capacitor featuring a 0.4 µF capacitance with ±20% tolerance and a 50 VDC voltage rating. Utilizing X7R dielectric, it operates within a temperature range of -55°C to +125°C. The component employs a 1812 (4532 metric) package with three terminals and incorporates FlexiCap technology with a nickel barrier for enhanced mechanical reliability.

Feature Summary

• Integrates X2Y architecture for simultaneous common-mode and differential-mode noise suppression
• Features FlexiCap termination design with nickel barrier to improve solder joint flexibility and shock resistance

Applications

• High-density PCB layouts requiring combined filtering and decoupling
• Automotive electronics systems meeting AEC-Q200 standards
• Noise-sensitive signal lines in industrial control equipment

Procurement Notes

Verify the complete part number including the suffix to ensure correct termination and packaging specifications. Confirm RoHS compliance status and moisture sensitivity level requirements against project constraints. Cross-reference datasheet revision dates to validate parameter accuracy before final procurement decisions.

Selection Notes

Select this component when space-constrained designs require integrated EMI filtering without additional discrete components. The X2Y topology reduces board area compared to separate capacitors. Ensure the 50V rating exceeds peak circuit voltages and verify thermal management capabilities within the specified operating range.

Part Context

This component belongs to the Knowles Syfer high-reliability MLCC series designed for demanding environments. It combines ceramic capacitor functionality with X2Y filter characteristics in a standard SMD footprint. The product line targets automotive and industrial sectors requiring robust electromagnetic interference mitigation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.