1206Y1000393MJTE07

Overview

The Knowles Syfer 1206Y1000393MJTE07 is a surface-mount multilayer ceramic capacitor (MLCC) designed as a three-terminal EMI filter. It features a capacitance of 0.039 µF with a tolerance of ±20% and utilizes an X7R dielectric material. The component is rated for a DC voltage of 100V and operates within a temperature range of -55°C to +125°C. Housed in a standard 1206 (3216 metric) package, it incorporates a nickel barrier electrode structure with 100% tin terminations. This configuration provides effective electromagnetic interference suppression while maintaining mechanical stability.

Feature Summary

• Three-terminal architecture functions as an integrated EMI filter for noise attenuation
• X7R dielectric ensures stable capacitance performance across the operating temperature range
• Nickel barrier construction with 100% tin terminations supports reliable soldering processes

Applications

• Electromagnetic interference filtering in high-density circuit boards
• Power supply input and output stages requiring noise suppression
• Signal line protection in sensitive electronic equipment

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to confirm terminal composition and dielectric characteristics. Ensure that the selected variant matches the required voltage rating and capacitance tolerance for the target application. Cross-reference datasheet revisions to confirm compliance with current environmental regulations and material specifications before finalizing procurement orders.

Selection Notes

Select this component when board space constraints require a combined filtering and decoupling solution in a 1206 footprint. The X7R dielectric offers higher volumetric efficiency compared to Class 1 alternatives, making it suitable for applications where moderate temperature stability is acceptable. Evaluate the impedance characteristics at the target frequency to ensure adequate attenuation performance for the specific noise profile encountered in the design.

Part Context

This part belongs to the Knowles Syfer FlexiCap series, which specializes in robust MLCCs designed for applications susceptible to board flex stress. The series integrates specialized termination structures to enhance mechanical durability during assembly and operation. As a dedicated EMI filter variant, it differs from standard capacitors by providing superior high-frequency noise suppression capabilities within the same physical dimensions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.