1812J5000182MCTE03

Overview

The Knowles Syfer 1812J5000182MCTE03 is a surface-mount X2Y feed-through capacitor with a capacitance of 1.8 nF and a DC voltage rating of 500 VDC. It utilizes C0G/NP0 dielectric characteristics, ensuring stable performance across an operating temperature range of -55°C to +125°C. The component features a 1812 (4532 metric) package size with flexible terminals designed to reduce mechanical stress. It offers a tolerance of ±20% and includes a nickel barrier with 100% tin plating for reliable soldering.

Feature Summary

• X2Y architecture providing simultaneous filtering of differential and common-mode noise
• Feed-through design integrating three electrical connections within a single compact package
• Flexible terminal construction to enhance resistance to board flexure-induced cracking

Applications

• High-density power supply input/output filtering
• EMI suppression in sensitive digital logic circuits
• Signal line protection in communication interfaces

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm terminal material and termination style. Ensure compatibility with automated pick-and-place equipment regarding the 1812 footprint dimensions. Confirm that the X2Y topology aligns with the circuit's noise mitigation requirements before finalizing procurement specifications.

Selection Notes

Select this component when space constraints require integrated differential and common-mode filtering. The X2Y structure reduces the total component count compared to discrete capacitor networks. Evaluate the 500V rating against peak transient voltages to ensure adequate safety margins in high-voltage applications.

Part Context

This part belongs to the Knowles Syfer X2Y family, which combines three capacitors into one device. It addresses EMI challenges in modern electronics by offering superior noise attenuation in a small form factor. The series is engineered for reliability in demanding industrial and consumer environments.

Replacement Considerations

Direct substitutes must match the X2Y topology and 1812 package. Verify equivalent capacitance, voltage rating, and terminal flexibility. Standard MLCCs cannot replicate the combined filtering function without additional components.