1206Y0500472MSTE03

Overview

The Knowles Syfer 1206Y0500472MSTE03 is a Class 2 multilayer ceramic capacitor (MLCC) designed for surface mount technology. It features an X7R dielectric material and offers a capacitance of 4700 pF with a tolerance of ±20%. The component is rated for a DC voltage of 50 VDC and operates within a temperature range of -55°C to +125°C. Housed in a standard 1206 (3216 metric) package, it utilizes flexible soft termination technology combined with a nickel barrier to enhance mechanical reliability under board flex conditions.

Feature Summary

• Incorporates FlexiCap™ flexible soft termination technology to withstand mechanical stress during PCB assembly and operation.
• Features a nickel barrier layer between the electrode and termination to prevent tin migration and improve solder joint integrity.
• Constructed as an X2Y® three-terminal device structure providing inherent common-mode noise suppression capabilities.

Applications

• Automotive electronics requiring AEC-Q200 qualification
• Board-flex sensitive circuit designs
• EMI filtering applications utilizing X2Y architecture

Procurement Notes

Verify the specific suffix MSTE03 against official Knowles Syfer documentation to confirm the inclusion of the nickel barrier and FlexiCap termination. Ensure the selected variant matches the required X2Y functionality if noise suppression is critical. Confirm RoHS compliance status through the manufacturer's current environmental declarations before integration into regulated assemblies.

Selection Notes

Select this component when high reliability under mechanical stress is required due to its flexible terminations. The X2Y configuration allows for effective common-mode noise reduction in a single compact footprint. Ensure the 50V rating provides sufficient margin for the application's peak voltage transients. Verify that the 1206 package dimensions fit the available PCB real estate constraints.

Part Context

This part belongs to the Knowles Syfer 1206Y series, which specializes in high-reliability MLCCs for demanding environments. The series integrates proprietary termination technologies to address failure modes associated with standard rigid terminations. It is positioned within the automotive and industrial segments where long-term stability and mechanical robustness are prioritized over cost.

Replacement Considerations

Direct substitutes must match the 1206 footprint, 4700pF capacitance, 50V rating, X7R dielectric, and specifically the FlexiCap/Nickel Barrier X2Y construction. Generic X7R capacitors lack the necessary mechanical and EMI performance characteristics.