1206J1000393MJTE07

Overview

The Knowles Syfer 1206J1000393MJTE07 is a surface-mount multilayer ceramic capacitor (MLCC) designed for EMI filtering applications. It features a capacitance of 39.0 nF with a tolerance of ±20% and a rated DC voltage of 100V. The component utilizes an X7R dielectric material, ensuring stable performance across a temperature range of -55°C to +125°C. Housed in a standard 1206 (3216 metric) package, it employs a three-terminal architecture with nickel barrier and 100% tin terminations to enhance shielding effectiveness against electromagnetic interference.

Feature Summary

• Three-terminal EMI filter architecture providing enhanced noise suppression
• Nickel barrier and 100% tin termination construction for reliable soldering
• X7R dielectric material supporting operation from -55°C to +125°C

Applications

• Electromagnetic interference (EMI) filtering in electronic circuits
• Signal line noise suppression in communication devices
• Power supply input/output filtering for sensitive components

Procurement Notes

Verify the specific suffix 'MJTE07' during procurement to ensure acquisition of the three-terminal EMI filter variant rather than standard two-terminal capacitors. Confirm that the supplier provides documentation explicitly identifying the component as a 3-terminal shielded device, as this structural difference significantly impacts circuit layout and functionality compared to general-purpose MLCCs.

Selection Notes

Select this component when high-frequency noise attenuation is required within a compact 1206 footprint. The three-terminal design offers superior common-mode noise rejection compared to standard capacitors. Ensure PCB layout accommodates the distinct ground terminal configuration inherent to 3-terminal filters to maintain optimal shielding performance and signal integrity.

Part Context

This part belongs to the Knowles Syfer 1206J series of multilayer ceramic capacitors. While sharing the 1206 form factor with standard capacitors, this specific model is engineered specifically for EMI suppression. It differs from standard variants by its internal electrode structure and external terminal arrangement, optimizing it for noise filtration rather than general energy storage.

Replacement Considerations

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