1812Y5000103MXTE03

Overview

The Knowles Syfer 1812Y5000103MXTE03 is a pass-through multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features a capacitance of 10 nF with a voltage rating of 500 VDC and a tolerance of ±20%. The component utilizes an X7R dielectric material, ensuring stable performance across an operating temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it incorporates a nickel barrier termination system with 100% tin plating. This construction supports high-current applications while maintaining low impedance characteristics typical of feed-through designs.

Feature Summary

• Pass-through architecture enables direct current flow through the component body, reducing parasitic inductance for high-frequency noise suppression.
• High voltage capability of 500 VDC allows reliable operation in demanding power electronics environments.
• X7R dielectric provides consistent capacitance stability over a wide industrial temperature range.
• Nickel barrier termination with tin plating ensures robust solderability and resistance to corrosion.

Applications

• Power supply input filtering for high-voltage DC-DC converters
• EMI suppression in motor drive circuits
• Noise reduction in high-power LED drivers
• Signal conditioning in industrial automation equipment

Procurement Notes

Verify the complete part number including suffixes such as MXTE03 to ensure correct packaging and termination specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Cross-reference manufacturer datasheets for detailed mechanical dimensions and recommended soldering profiles to prevent thermal damage during reflow.

Selection Notes

Select this component when high current handling and low inductance are critical alongside high voltage isolation. The 1812 package offers a balance between current capacity and board space efficiency. Ensure the application voltage does not exceed the 500 VDC rating under all transient conditions. Consider the X7R temperature coefficient if capacitance drift within the operating range impacts circuit stability.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in feed-through capacitors. These devices integrate filtering capabilities directly into the power path, distinguishing them from standard parallel MLCCs. The series is engineered for applications requiring both bulk capacitance and effective high-frequency noise attenuation in compact form factors.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 500V rating, 10nF capacitance, and pass-through structure. Verify that alternative components support similar current ratings and have compatible termination materials for existing solder processes. Check for equivalent EMI suppression performance metrics before finalizing any cross-brand replacement.