1806J0500471MCTE01

Overview

The Knowles Syfer 1806J0500471MCTE01 is a three-terminal surface-mount feedthrough capacitor designed for EMI suppression. It features a capacitance of 470 pF with a ±20% tolerance and a DC voltage rating of 50 VDC. The component utilizes C0G (NP0) dielectric material, ensuring stable performance across an operating temperature range of -55°C to +125°C. Housed in a compact 1806 (4516 metric) package measuring 4.5 mm x 1.6 mm x 1.3 mm, it incorporates FlexiCap™ technology for enhanced mechanical reliability.

Feature Summary

• Three-terminal architecture provides effective common-mode noise filtering for high-frequency interference.
• FlexiCap™ termination system offers flexible nickel barrier contacts to reduce stress on the PCB during board flexing.
• C0G/NP0 dielectric ensures minimal capacitance variation over temperature and voltage changes.

Applications

• High-frequency signal line filtering in communication equipment
• Power supply input/output decoupling in sensitive analog circuits
• EMI suppression in automotive electronic control units

Procurement Notes

Verify the specific voltage rating against design requirements, as datasheet listings may vary between 50V and 100V variants within the same series. Confirm the presence of the FlexiCap™ termination structure if board flex resistance is critical. Ensure the supplier provides official RoHS compliance documentation and valid manufacturer traceability records prior to purchase.

Selection Notes

Select this component when space-constrained EMI filtering is required without compromising signal integrity. The C0G dielectric is suitable for precision applications where capacitance stability is paramount. Consider the three-terminal configuration for superior high-frequency attenuation compared to standard two-terminal MLCCs in noisy environments.

Part Context

This part belongs to the Knowles Syfer E01 series of surface-mount EMI filters. The series is characterized by its use of FlexiCap™ technology, which addresses reliability issues associated with rigid terminations in modern thin-profile PCB designs. The 1806 package size balances footprint efficiency with adequate current handling capabilities for general-purpose filtering.

Replacement Considerations

Direct substitutes include other 1806 package three-terminal capacitors from the same manufacturer family, such as the 1806J1000471MCTE01, provided the higher voltage rating does not impact cost or availability constraints. Verify that any replacement maintains the same FlexiCap™ termination style to preserve mechanical reliability.