1812J5000272MXTE03

Overview

The Knowles Syfer 1812J5000272MXTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a capacitance of 2700 pF with a ±20% tolerance and a DC voltage rating of 500 VDC. Utilizing X7R dielectric material, the component operates within a temperature range of -55°C to +125°C. The device is housed in an 1812 (4532 metric) package with nickel barrier and 100% tin terminations. This specific variant functions as a feed-through or X2Y capacitor, integrating internal shielding to suppress electromagnetic interference.

Feature Summary

• Integrated X2Y architecture providing simultaneous suppression of differential and common-mode noise
• Feed-through design offering superior electromagnetic interference filtering compared to standard MLCCs
• High thermal stability maintained through X7R dielectric characteristics across wide operating temperatures

Applications

• High-frequency signal line filtering in sensitive electronic circuits
• Power supply input/output stages requiring common-mode noise reduction
• Automotive electronics systems demanding robust EMI suppression
• Industrial control boards subject to harsh electrical environments

Procurement Notes

Verify the exact suffix configuration when ordering, as variations may indicate different termination materials or packaging formats. Confirm that the feed-through form factor aligns with your PCB footprint requirements, as this differs from standard planar capacitors. Ensure compatibility with your assembly process regarding the specific terminal type and mounting orientation required for effective shielding performance.

Selection Notes

Select this component when standard MLCCs fail to provide adequate noise attenuation due to parasitic inductance. The X2Y structure offers lower impedance paths for noise currents without increasing board space. Consider the 500V rating for robustness against voltage transients. Evaluate the physical dimensions to ensure the feed-through pins fit the designated pad layout on the target circuit board design.

Part Context

This part belongs to the Knowles Syfer high-reliability MLCC portfolio, specifically engineered for demanding industrial and automotive sectors. The 'J' designation typically indicates the 1812 case size, while the 'MXT' suffix denotes the specific X2Y feed-through construction. These components are distinguished by their ability to combine capacitance with inherent shielding, reducing the need for multiple discrete filter components.

Replacement Considerations

Direct substitutes include other X2Y feed-through capacitors from Knowles Syfer with matching 1812 dimensions and 500V ratings. Verify that any replacement maintains the same X7R dielectric class and terminal configuration to ensure consistent thermal and mechanical performance during soldering.