1806J0250392MJTE07

Overview

The Knowles Syfer 1806J0250392MJTE07 is a surface-mount multilayer ceramic capacitor (MLCC) designed as a three-terminal EMI filter. It features a capacitance of 3.90 nF with a tolerance of ±20% and an X7R dielectric material. The component is rated for a DC voltage of 25V and operates within a temperature range of -55°C to +125°C. It utilizes a 1806 (4516 metric) package size with nickel barrier and 100% tin terminations, providing effective electromagnetic interference suppression in compact electronic designs.

Feature Summary

• Three-terminal architecture functions as an integrated EMI filter for noise attenuation
• X7R dielectric provides stable capacitance characteristics across the operating temperature range
• Nickel barrier and 100% tin termination system ensures reliable solderability and corrosion resistance

Applications

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

Procurement Notes

Verify the specific termination finish and package dimensions against the official datasheet before integration. Confirm that the three-terminal configuration aligns with the PCB footprint requirements. Ensure the voltage rating and capacitance tolerance meet the circuit design specifications. Check for RoHS compliance status if required by project regulations.

Selection Notes

Select this component when integrated EMI filtering is required without additional discrete components. The three-terminal design offers superior high-frequency performance compared to standard two-terminal capacitors. Consider the physical size constraints of the 1806 package relative to available board space. Evaluate the thermal stability provided by the X7R material for the intended operating environment.

Part Context

This part belongs to the Knowles Syfer MLCC series, specifically engineered for surface-mount applications requiring robust EMI suppression. The J suffix indicates the 1806 case size, while the TE07 designation typically refers to the specific termination and packaging configuration. It represents a specialized solution for noise control in modern electronics.

Replacement Considerations

Direct substitutes must match the 3-terminal EMI filter topology, 3.9nF capacitance, 25V rating, and 1806 package. Verify compatibility of termination materials and mounting orientation. Standard two-terminal capacitors are not functionally equivalent due to the lack of integrated filtering capability.