4251-004

Overview

The Tusonix 4251-004 is a third-order LC Pi EMI feedthrough filter designed for chassis mounting. It features a capacitance of 0.028 µF and supports a maximum DC current of 10 A with a rated voltage of 100 VDC. The component operates within a temperature range of -55°C to +125°C. It provides an insertion loss of 75 dB at frequencies between 100 MHz and 10 GHz, effectively suppressing electromagnetic interference in sensitive electronic circuits.

Feature Summary

• Third-order LC Pi network configuration for enhanced attenuation
• Chassis mount bushing design for secure installation
• High current handling capability for power line applications

Applications

• Data lines for mobile devices
• Electromagnetic compatibility filtering in electronic assemblies
• Power supply input protection

Procurement Notes

Verify the specific datasheet version for the 4251-004 model to confirm exact electrical tolerances and mechanical dimensions before integration. Ensure that the mounting hardware matches the bushing specifications. Confirm compliance requirements such as RoHS status directly from the manufacturer's documentation to meet regulatory standards for the target market.

Selection Notes

Select this component when high attenuation is required for both differential and common-mode noise in mobile device data lines or power inputs. The 10 A current rating makes it suitable for applications requiring robust power handling alongside signal integrity preservation. Consider the physical chassis mounting constraints and thermal environment limits up to 125°C during system design.

Part Context

This part belongs to the Tusonix 4251 series of multilayer bushing EMI filters manufactured by CTS Electronic Components. The series specializes in EMC solutions, offering various configurations including LC and RC networks. These components are engineered to provide reliable interference suppression in compact form factors suitable for modern electronic equipment.

Replacement Considerations

Publicly confirmed substitute part numbers for the 4251-004 are not available in the provided source material. Consult the manufacturer for direct equivalents or cross-reference based on identical electrical parameters and mechanical footprint if substitution is necessary.