SFJEL5000334MX0

Overview

The Knowles Syfer SFJEL5000334MX0 is an axial lead EMI feedthrough capacitor rated for 500 VDC with a capacitance of 0.33 µF. It utilizes X7R dielectric material and offers a tolerance of ±20%. The component operates within a temperature range of -55°C to +125°C. Designed for high-frequency noise suppression, it features low equivalent series resistance (ESR) and inductance (ESL) characteristics typical of feedthrough architectures. The device supports direct panel mounting via its axial leads, providing robust electromagnetic interference filtering for sensitive electronic circuits.

Feature Summary

• Provides effective high-frequency electromagnetic interference suppression through feedthrough architecture
• Features low parasitic inductance and resistance for superior signal integrity
• Utilizes stable X7R ceramic dielectric for consistent performance across wide temperature ranges
• Supports secure axial lead installation for reliable panel mounting applications

Applications

• Power supply input filtering in industrial control systems
• Electromagnetic compatibility shielding in aerospace avionics
• Signal line protection in medical diagnostic equipment
• Noise reduction in military communication hardware

Procurement Notes

Verify the exact suffix MX0 against official datasheets to confirm pin configuration and termination style. Ensure environmental ratings match operational requirements. Cross-reference manufacturer part numbers directly to avoid counterfeit components. Confirm RoHS compliance status if required by specific regulatory standards. Validate packaging details for handling procedures.

Selection Notes

Select this component when high voltage isolation and compact form factor are critical. Compare electrical parameters against system noise profiles to ensure adequate attenuation. Consider thermal management capabilities given the operating temperature limits. Evaluate mechanical stress on axial leads during installation. Verify compatibility with existing PCB or panel mounting structures.

Part Context

This component belongs to the SFJE series of feedthrough capacitors from Knowles Syfer. The series is engineered for demanding environments requiring reliable EMI filtering. Axial lead construction distinguishes it from surface mount alternatives. It serves as a specialized solution for high-voltage DC line protection in critical infrastructure.

Replacement Considerations

Check for direct cross-references in manufacturer substitution guides. Verify that alternative parts meet identical voltage, capacitance, and physical dimension specifications. Ensure thermal and electrical performance matches original design intent before implementation.