1206J1000393MXTE07

Overview

The Knowles Syfer 1206J1000393MXTE07 is a feedthrough capacitor designed for surface mount applications. It features a capacitance of 0.039 µF with a rated DC voltage of 100V and a maximum current rating of 2A. The component utilizes an X7R dielectric material, ensuring stability across a wide operating temperature range from -55°C to +125°C. Housed in a standard 1206 (3216 metric) package, it incorporates a three-terminal structure with nickel barrier and 100% tin terminations to provide effective EMI filtering capabilities.

Feature Summary

• Three-terminal feedthrough architecture provides superior electromagnetic interference suppression compared to standard two-terminal capacitors.
• Integrated low-inductance design facilitates high-frequency noise attenuation in compact circuit layouts.
• Robust termination system ensures reliable soldering and mechanical stability under thermal cycling conditions.

Applications

• High-density board-level EMI filtering
• Power supply input/output decoupling
• Signal line noise suppression

Procurement Notes

Verify the specific suffix MXTE07 against official datasheets to confirm the presence of the nickel barrier and tin termination stack-up. Ensure the selected variant meets the required current handling specifications for the target application. Cross-reference the package dimensions with the PCB footprint library to guarantee accurate placement during assembly processes.

Selection Notes

Select this component when space constraints require a 1206 footprint but higher filtering performance than standard MLCCs is necessary. The feedthrough topology offers lower parasitic inductance, making it suitable for high-speed digital or RF circuits. Confirm that the 100V rating aligns with the peak voltage levels present in the circuit to prevent dielectric breakdown.

Part Context

This part belongs to the Knowles Syfer feedthrough capacitor series, which integrates capacitor functionality within a single SMD package. These components are engineered to replace traditional discrete filter networks, reducing board area and improving signal integrity by minimizing trace inductance associated with external filtering arrangements.

Replacement Considerations

Direct substitutes must match the 1206 footprint, 0.039 µF capacitance, 100V rating, and three-terminal feedthrough structure. Verify compatibility of termination materials if lead-free processing is mandated.