1812J5000183MXTE03

Overview

The Knowles Syfer 1812J5000183MXTE03 is a surface-mount multilayer ceramic capacitor (MLCC) housed in an 1812 (4532 metric) package. It features a nominal capacitance of 18 nF with a tolerance of ±20%. The device utilizes X7R dielectric material and is rated for a DC voltage of 500 VDC. Key structural characteristics include a nickel barrier electrode structure terminated with 100% tin. This component is identified as an X2Y capacitor, designed to provide simultaneous filtering of common-mode and differential-mode noise within a single compact footprint.

Feature Summary

• X2Y architecture enabling simultaneous suppression of common-mode and differential-mode interference signals
• Nickel barrier internal electrode construction paired with 100% tin external terminations for reliable solderability
• X7R dielectric composition providing stable capacitance performance across the specified operating temperature range

Applications

• High-density power supply input/output filtering stages
• Signal integrity management in high-speed digital circuits
• Electromagnetic interference (EMI) suppression in automotive electronics

Procurement Notes

Verify the specific suffix MXTE03 against official manufacturer documentation to confirm the X2Y configuration and termination specifications. Ensure compatibility with standard reflow soldering profiles for 1812 packages. Confirm RoHS compliance status through current datasheets before integration into regulated assemblies.

Selection Notes

Select this component when space-constrained designs require combined common-mode and differential-mode noise attenuation. The 1812 package offers higher capacitance density than smaller footprints while maintaining 500V rating. Verify that the ±20% tolerance aligns with circuit requirements for X7R dielectrics under varying bias conditions.

Part Context

This part belongs to the Knowles Syfer 1812J series of general type MLCCs. The series encompasses various capacitance values and tolerances within the 1812 case size. The specific model integrates advanced X2Y technology, distinguishing it from standard two-terminal capacitors by offering three-terminal functionality in a dual-electrode layout.

Replacement Considerations

Direct substitutes must match the 1812 footprint, 500V rating, and X2Y topology. Standard X7R MLCCs lack the common-mode filtering capability. Consult manufacturer cross-reference lists for equivalent X2Y devices from other suppliers if availability is constrained.