1806J0500331MCTE01

Overview

The Knowles Syfer 1806J0500331MCTE01 is a surface-mount feed-through capacitor designed for EMI suppression. It features a 330 pF capacitance with a ±20% tolerance and a 50 VDC voltage rating. The component utilizes C0G dielectric material, ensuring stability across an operating temperature range of -55°C to +125°C. Housed in a standard 1806 (4516 metric) package, it supports a maximum current of 300 mA. This three-terminal device integrates filtering capabilities directly into the circuit layout.

Feature Summary

• Three-terminal feed-through architecture provides integrated EMI filtering within the SMD footprint
• C0G dielectric ensures stable capacitance performance across wide temperature variations
• Surface-mount construction facilitates automated assembly and compact board integration

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 complete part number including suffixes against official manufacturer documentation to ensure correct termination and packaging specifications. Confirm RoHS compliance status through the latest datasheet or environmental declaration provided by Knowles Syfer. Cross-reference the Mouser or DigiKey part numbers with the original manufacturer identifier to avoid sourcing errors during procurement.

Selection Notes

Select this component when space-constrained designs require effective high-frequency noise attenuation without adding discrete filter components. The 1806 package offers a balance between current handling capability and board area efficiency. Ensure the circuit operates within the specified 50V DC limit and that the 300mA current rating aligns with the application's peak load requirements.

Part Context

This component belongs to the Knowles Syfer E01 series of surface-mount EMI filters. The series is characterized by its use of ceramic feed-through technology adapted for SMT processes. These capacitors are engineered to replace traditional through-hole feed-through capacitors, enabling higher density PCB layouts while maintaining robust electromagnetic interference suppression performance.

Replacement Considerations

Direct substitutes must match the 1806 package dimensions, 330pF capacitance, 50V rating, and three-terminal configuration. Verify that alternative parts maintain equivalent C0G dielectric characteristics and current handling capabilities to ensure circuit compatibility.