1206Y1000393MJTE03

Overview

The Knowles Syfer 1206Y1000393MJTE03 is a surface-mount feedthrough capacitor designed for high-frequency noise suppression. It features a capacitance of 0.039 µF with a voltage rating of 100 V and a tolerance of ±5%. Utilizing X7R dielectric material, this component operates within a temperature range of -55°C to +125°C. The device employs a three-terminal architecture housed in a 1206 (3216 metric) package, providing effective electromagnetic interference filtering for sensitive electronic circuits.

Feature Summary

• Three-terminal feedthrough architecture for enhanced high-frequency noise attenuation
• X7R dielectric construction ensuring stable capacitance across operating temperatures
• Surface-mount design compatible with automated assembly processes

Applications

• High-frequency signal line filtering
• Power supply decoupling in noisy environments
• Electromagnetic interference suppression in communication modules

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to confirm terminal configuration and dielectric specifications. Ensure compatibility with PCB pad layouts designed for three-terminal feedthrough components. Cross-reference part numbers with authorized distributors to avoid counterfeit sources. Confirm RoHS compliance status through current datasheets before integration into regulated products.

Selection Notes

Select this component when superior high-frequency performance is required compared to standard two-terminal MLCCs. The three-terminal structure offers lower parasitic inductance, making it suitable for applications demanding rapid transient response. Evaluate thermal stability requirements against the X7R characteristics. Consider physical footprint constraints relative to the 1206 package dimensions during layout planning.

Part Context

This component belongs to the Knowles Syfer feedthrough capacitor series, which specializes in EMI/RFI suppression. Unlike general-purpose multilayer ceramic capacitors, these devices integrate internal shielding structures to isolate input and output terminals. This family targets applications requiring robust noise filtration in compact form factors without compromising electrical integrity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify functional equivalence by matching capacitance, voltage rating, package size, and terminal configuration with alternative manufacturers' feedthrough capacitors.