1812Y5000473MJTE03

Overview

The Knowles Syfer 1812Y5000473MJTE03 is a high-reliability multilayer ceramic feed-through capacitor designed for surface-mount applications. It features a capacitance of 0.047 µF with a ±20% tolerance and a DC voltage rating of 500 VDC. The component utilizes X7R dielectric material, ensuring stable performance across an operating temperature range of -55°C to +125°C. Housed in an 1812 (4532 metric) package, it incorporates flexible terminals and a nickel barrier structure.

Feature Summary

• Integrates feed-through architecture within a standard SMD footprint for enhanced EMI suppression
• Utilizes FlexiCap technology with flexible terminals to mitigate mechanical stress on the substrate
• Incorporates a nickel barrier layer to prevent tin whisker formation and ensure long-term reliability

Applications

• High-frequency noise filtering in sensitive analog and digital circuits
• Power supply input/output stages requiring robust EMI attenuation
• Automotive electronics systems demanding high reliability under thermal stress

Procurement Notes

Verify the specific suffix 'MJTE03' against official manufacturer documentation to confirm the inclusion of the nickel barrier and FlexiCap terminal configuration. Ensure that the 1812 package dimensions and pad layout match the target PCB design constraints. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when both high-voltage handling and superior electromagnetic interference suppression are required in a compact surface-mount form factor. The combination of X7R dielectric stability and feed-through topology makes it suitable for environments where traditional MLCCs may fail due to mechanical strain or insufficient noise attenuation. Evaluate thermal management requirements against the specified operating temperature limits.

Part Context

This component belongs to the Knowles Syfer high-reliability MLCC series, specifically engineered for demanding industrial and automotive applications. The 1812Y series designation indicates a standard 1812 case size with specific internal construction optimized for durability. The MJTE03 suffix denotes specialized terminal and barrier features distinct from standard commercial-grade capacitors.

Replacement Considerations

Direct substitutes include other 1812 feed-through capacitors with matching 500V ratings and 0.047µF capacitance. Verify compatibility of the nickel barrier and flexible terminal specifications if replacing with components from different manufacturers to maintain mechanical integrity.