1812J5000123MXTE03

Overview

The Knowles Syfer 1812J5000123MXTE03 is a surface-mount feed-through capacitor designed for high-frequency applications. It features a capacitance of 0.012 µF with an X7R dielectric and a DC voltage rating of 500V. The component operates within a temperature range of -55°C to +125°C. It utilizes a 1812 (4532 metric) package with a 3-pad configuration, supporting a current rating of 50 mA.

Feature Summary

• Integrated feed-through architecture providing electromagnetic interference suppression in a compact surface-mount form factor.

Applications

• High-frequency signal filtering
• Electromagnetic interference suppression
• Power line conditioning

Procurement Notes

Verify the specific 3-pad footprint requirements against your PCB layout, as this feed-through design differs from standard two-terminal MLCCs. Confirm that the 50 mA current rating aligns with your circuit's operational limits. Ensure compatibility with the specified 1812 package dimensions during assembly planning.

Selection Notes

Select this component when integrated EMI filtering is required without additional discrete components. The X7R dielectric offers stable performance across the operating temperature range. The 500V rating suits moderate voltage applications requiring robust insulation.

Part Context

This part belongs to the Knowles Syfer feed-through capacitor series, distinct from standard multilayer ceramic capacitors. It combines capacitance with shielding properties in a single SMD package, optimizing board space for noise-sensitive designs.

Replacement Considerations

Direct substitutes must match the 3-pad feed-through structure and 1812 dimensions. Standard 2-terminal MLCCs are not functionally equivalent due to the lack of integrated shielding.