1812J0500474MJTE03

Overview

The Knowles Syfer 1812J0500474MJTE03 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 0.47 µF with a ±20% tolerance, rated for 50 VDC and a continuous current of 50 mA. The component utilizes an X7R dielectric material and conforms to the standard 1812 (4532 metric) package dimensions. It is constructed with three pads for mounting and is RoHS compliant.

Feature Summary

• Integrated feed-through architecture for effective electromagnetic interference filtering
• High-current handling capability suitable for power line applications
• Stable X7R ceramic dielectric for consistent performance across temperature ranges

Applications

• Power supply input filtering
• Electromagnetic interference suppression in electronic circuits
• Signal integrity enhancement in high-noise environments

Procurement Notes

Verify the specific suffix 'E03' against official datasheets to confirm the exact termination and packaging configuration. Ensure compatibility with the intended PCB footprint, as feed-through capacitors require specific pad layouts distinct from standard MLCCs. Confirm RoHS compliance status directly with the manufacturer or authorized distributor documentation prior to integration.

Selection Notes

Select this component when simultaneous DC power delivery and high-frequency noise attenuation are required in a single device. The 50 mA rating dictates suitability for low-to-medium current power rails. Evaluate the physical size constraints against the 1812 package dimensions and ensure the circuit voltage does not exceed the 50 VDC rating under all operating conditions.

Part Context

This part belongs to the Knowles Syfer Syfer Power series, which specializes in feed-through capacitors for EMI/RFI suppression. Unlike standard multilayer ceramic capacitors, these components integrate a conductive path through the dielectric, allowing them to filter noise while passing current. This design is critical for maintaining signal purity in sensitive electronic systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout and electrical specifications carefully if considering alternative manufacturers, as feed-through capacitor internal structures vary significantly between brands.