1206Y0500124MSTE03

Overview

The Knowles Syfer 1206Y0500124MSTE03 is a Surface Mount Multilayer Ceramic Capacitor (MLCC) in the FlexiCap series. It features a capacitance of 120 nF with a tolerance of ±20% and a DC voltage rating of 50V. The dielectric material is X7R, providing stable performance across a temperature range of -55°C to +125°C. This component utilizes an X2Y architecture with a nickel barrier electrode structure, designed for enhanced electromagnetic interference filtering.

Feature Summary

• X2Y three-terminal architecture for integrated common-mode and differential-mode noise suppression
• Flexible soft termination technology to withstand board flexure and mechanical stress
• Nickel barrier electrode construction for improved reliability and solderability
• AEC-Q200 qualification for automotive electronics applications

Applications

• Automotive electronic systems requiring AEC-Q200 compliance
• Circuits sensitive to board flexure and mechanical deformation
• Electromagnetic interference (EMI) filtering in compact surface mount designs

Procurement Notes

Verify the specific suffix MSTE03 against official Knowles Syfer documentation to confirm the nickel barrier and X2Y configuration. Ensure compatibility with automated pick-and-place equipment due to the 1206 package dimensions. Confirm RoHS compliance status through current manufacturer declarations before integration into regulated assemblies.

Selection Notes

Select this component when space-constrained EMI filtering is required alongside mechanical durability. The X2Y topology reduces the need for multiple discrete capacitors. Verify that the 50V rating meets the circuit's peak voltage requirements. Consider the thermal stability of the X7R dielectric for the intended operating environment.

Part Context

This part belongs to the Knowles Syfer FlexiCap family, which specializes in high-reliability MLCCs with flexible terminations. The 1206Y prefix indicates the 1206 imperial case size. The MSTE03 suffix typically denotes the specific internal structure and termination finish associated with the X2Y and nickel barrier variants within this product line.

Replacement Considerations

Direct substitutes must match the 1206 footprint, 120nF capacitance, 50V rating, X7R dielectric, and X2Y terminal configuration. Generic X7R MLCCs lack the X2Y filtering capability and flexible termination benefits. Verify pinout compatibility as X2Y components have specific signal and ground terminal arrangements.