SFJEL5000473MX1

Overview

The Knowles Syfer SFJEL5000473MX1 is an axial feedthrough capacitor designed for high-voltage EMI suppression. It features a capacitance of 0.047 µF with a ±20% tolerance and an X7R dielectric material. The component supports a DC voltage rating of 500 VDC and handles a maximum current of 15 A. Operating within a temperature range of -55°C to +125°C, it utilizes a flange end seal construction. The physical dimensions are 9.80 mm in length by 9.40 mm in diameter.

Feature Summary

• Axial feedthrough design provides low-inductance performance for effective high-frequency noise attenuation.
• Flange end seal construction ensures robust environmental protection and mechanical stability.
• Capable of handling high continuous currents up to 15 A while maintaining stable electrical characteristics.

Applications

• High-voltage power supply input filtering
• EMI suppression in industrial control systems
• Military and aerospace electronic equipment

Procurement Notes

Verify the specific suffix MX1 against official datasheets to confirm exact dimensional tolerances and termination specifications. Ensure compatibility with existing panel cutouts due to the fixed flange diameter. Confirm RoHS3 compliance status if required by project regulations. Cross-reference the 15 A current rating with actual circuit load conditions to prevent thermal issues during operation.

Selection Notes

Select this component when high-current handling and compact axial form factors are required for EMI filtering. The 500 VDC rating suits medium-to-high voltage applications. Consider the 9.80 mm length for spatial constraints. The X7R dielectric offers stable capacitance over the operating temperature range, suitable for general-purpose filtering where precise C0G stability is not critical.

Part Context

This part belongs to the Knowles Syfer SFJE series of axial feedthrough capacitors. These components are engineered for demanding environments requiring reliable EMI/RFI suppression. The series combines high voltage ratings with significant current capacity, making them distinct from standard surface-mount or through-hole ceramic capacitors used in lower-power circuits.

Replacement Considerations

Direct substitutes must match the 0.047 µF capacitance, 500 VDC rating, 15 A current capacity, and 9.80 mm x 9.40 mm dimensions. Verify that alternative axial feedthrough capacitors maintain similar insertion loss characteristics and flange mounting hole patterns to ensure mechanical interchangeability without PCB redesign.

FAQ

What is the maximum continuous current rating for the SFJEL5000473MX1?

The component is rated for a maximum continuous current of 15 A.

Does the SFJEL5000473MX1 use a flange end seal?

Yes, it utilizes a flange end seal construction for enhanced sealing and mounting stability.