SFJEC2K00331MC0

Overview

The Knowles Syfer SFJEC2K00331MC0 is a Class 1 EMI feedthrough capacitor featuring C0G (NP0) dielectric. It offers a capacitance of 330 pF with ±20% tolerance and a DC voltage rating of 2 kVDC. Designed for axial lead mounting, it supports a maximum DC current of 15 A. The component operates within a temperature range of -55°C to +125°C. Physical dimensions are 9.80 mm diameter by 9.40 mm length, utilizing a 1/4-28 thread specification. Insertion loss is rated at 13 dB @ 100 MHz.

Feature Summary

• Provides high-frequency electromagnetic interference suppression through integrated feedthrough filtering architecture.
• Maintains stable electrical performance across wide thermal variations due to C0G/NP0 ceramic dielectric characteristics.
• Supports high continuous direct current loads up to 15 Amperes without degradation.

Applications

• Power supply input filtering in industrial control systems
• Electromagnetic compatibility shielding for sensitive electronic instrumentation
• High-voltage DC line noise attenuation in aerospace avionics

Procurement Notes

Verify manufacturing status prior to order placement as this specific part number is listed as obsolete or discontinued by the manufacturer. Confirm availability of alternative series components if production continuity is required. Ensure procurement channels provide valid traceability documentation for legacy electronic components.

Selection Notes

Select this component when axial feedthrough topology is mandatory for panel-mounted EMI filtration. The 2 kVDC rating and 15 A current capacity suit high-power applications requiring robust noise rejection. Consider physical size constraints relative to the 9.8 mm diameter and 1/4-28 threading requirements during mechanical design integration.

Part Context

This component belongs to the SFJE series of EMI feedthrough filters manufactured by Knowles Syfer. The series specializes in high-reliability ceramic capacitors designed for harsh environments. These filters integrate capacitance directly into the conductive path, offering superior high-frequency attenuation compared to standard parallel-connected capacitors.

Replacement Considerations

Public confirmed substitute part numbers: None available.