1812Y1000123MSTE03

Overview

The Knowles Syfer 1812Y1000123MSTE03 is a feed-through ceramic capacitor designed for high-frequency noise suppression. It features a capacitance of 0.012 µF with a voltage rating of 100V DC and a current rating of 50 mA. The component utilizes X7R dielectric material, ensuring stability across an operating temperature range of -55°C to +125°C. Housed in a compact 1812 (4532 metric) surface-mount package, it integrates a built-in termination structure for direct PCB mounting without additional components.

Feature Summary

• Integrated feed-through architecture eliminates the need for external grounding components
• High-current handling capability supports robust signal integrity protection
• X7R dielectric provides stable capacitance performance under varying thermal conditions

Applications

• High-speed data line filtering in automotive infotainment systems
• Noise suppression for USB and HDMI interfaces in consumer electronics
• EMI reduction in industrial communication modules requiring board-level integration

Procurement Notes

Verify the specific MSTE03 suffix indicates the feed-through configuration distinct from standard MLCCs. Confirm RoHS compliance status and AEC-Q200 qualification if automotive application is required. Check datasheet for precise footprint dimensions and recommended soldering profiles to ensure reliable attachment during assembly processes.

Selection Notes

Select this component when space constraints prevent the use of discrete ferrite beads or capacitors. The integrated design simplifies layout by combining decoupling and filtering functions. Ensure the 50 mA current rating exceeds the maximum expected signal current to prevent device degradation or failure during operation.

Part Context

This part belongs to the Knowles Syfer FlexiCap™ series, which emphasizes reliability in board-flex sensitive environments. While many parts in the 1812Y family are standard multilayer ceramic capacitors, the MSTE03 suffix denotes a specialized feed-through variant. This distinction is critical for circuit topology, as it replaces traditional two-component filter networks with a single surface-mount device.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific feed-through variant are not available in the provided documentation. Standard MLCC replacements like 1812Y1000123MET lack the integrated feed-through structure and cannot functionally replace this component without redesigning the circuit layout.