1812Y5000332MSTE03

Overview

The Knowles Syfer 1812Y5000332MSTE03 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a capacitance of 3300 pF with a tolerance of ±20%, rated for a DC voltage of 50V. Utilizing X7R dielectric material, the component operates within a temperature range of -55°C to +125°C. The device incorporates FlexiCap technology with soft terminations and a nickel barrier to enhance mechanical durability. It is AEC-Q200 qualified and utilizes an X2Y architecture for superior electromagnetic interference suppression.

Feature Summary

• X2Y architecture provides integrated common-mode noise filtering capabilities
• FlexiCap soft termination design mitigates stress from board flexing
• Nickel barrier construction ensures robust solder joint integrity
• AEC-Q200 qualification supports automotive reliability standards

Applications

• Automotive electronic control units requiring EMI suppression
• Circuit boards susceptible to mechanical deformation or flexing
• High-density power supply input/output filtering stages
• Signal lines in noisy environments requiring common-mode attenuation

Procurement Notes

Verify the complete part number including the suffix MSTE03 to ensure correct termination and packaging specifications. Confirm that the application environment remains within the specified -55°C to +125°C operating range. Ensure PCB layout accommodates the specific footprint dimensions associated with the 1812 case size. Validate compatibility with reflow soldering profiles suitable for components with nickel barriers and soft terminations.

Selection Notes

Select this component when both high-frequency noise suppression and mechanical resilience are required simultaneously. The X2Y configuration offers a compact solution compared to discrete filter networks. Consider the 50V rating relative to peak circuit voltages to maintain adequate derating margins. Evaluate the trade-off between the X7R dielectric stability and the need for precise capacitance values in critical timing circuits.

Part Context

This component belongs to the Knowles Syfer FlexiCap series, which specializes in flexible termination MLCCs. The 1812Y prefix indicates the 1812 metric case size and X7R dielectric type. The Y500 segment denotes the 50VDC voltage rating. This series is engineered specifically for applications where standard rigid terminations might fail due to substrate warpage or thermal cycling stresses.

Replacement Considerations

Direct substitutes must match the X2Y topology, 1812 package, and 50V rating. Verify that alternative parts also feature soft terminations if board flex resistance is critical. Check for equivalent AEC-Q200 certification if automotive compliance is mandatory. Ensure the replacement maintains the same capacitance value and tolerance specifications.