1806J0500391MCTE01

Overview

The Knowles Syfer 1806J0500391MCTE01 is a surface-mount feed-through capacitor designed for EMI suppression. It features a 390 pF capacitance with ±20% tolerance, rated for 50 VDC. The component utilizes C0G dielectric material and operates within a temperature range of -55°C to +125°C. Housed in an 1806 (4516 metric) package measuring 4.5 mm x 1.6 mm, it employs SMD/SMT terminations.

Feature Summary

• Three-terminal architecture providing effective common-mode noise attenuation
• C0G dielectric ensures stable capacitance performance across varying temperatures
• Surface-mount design facilitates automated assembly processes

Applications

• High-frequency signal line filtering
• Power supply input/output decoupling
• EMI suppression in sensitive electronic circuits

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm terminal plating and packaging details. Ensure compatibility with standard reflow soldering profiles. Confirm RoHS compliance status through manufacturer documentation prior to integration into regulated assemblies.

Selection Notes

Select this component when low-capacitance high-frequency filtering is required in compact spaces. The 1806 footprint offers a balance between parasitic inductance reduction and board space efficiency. Verify voltage derating requirements for the specific application environment.

Part Context

This part belongs to the Knowles Syfer E01 series of multilayer ceramic feed-through capacitors. These components are engineered for superior electromagnetic interference suppression compared to standard two-terminal MLCCs, offering lower impedance paths for high-frequency noise.

Replacement Considerations

Direct substitutes require matching the 1806 footprint, 390 pF value, 50 V rating, and three-terminal structure. Verify that alternative parts maintain equivalent C0G dielectric characteristics and thermal stability ranges.