4253-501

Overview

The 4253-501 is a third-order LC (Pi) EMI feedthrough filter manufactured by Tusonix. It features a capacitance of 0.023 µF and supports a maximum DC current of 10 A with a voltage rating of 100 V. The component utilizes an axial bushing package configuration with one turret lead and one hooked lead for chassis mounting. It provides significant RF attenuation, achieving 65 dB at both 100 MHz and 10 GHz frequencies.

Feature Summary

• Third-order LC Pi-filter topology for enhanced high-frequency noise suppression
• Axial bushing mechanical design enabling secure panel or chassis installation
• Dual-lead configuration comprising one turret and one hooked terminal

Applications

• Electromagnetic interference filtering in electronic enclosures
• Power line conditioning for sensitive equipment
• Chassis-mounted signal integrity protection

Procurement Notes

Verify the specific datasheet version to confirm exact electrical tolerances and mechanical dimensions before integration. Ensure the mounting interface matches the required bushing specifications. Confirm RoHS compliance status if restricted substances are prohibited in the final assembly. Cross-reference the lead configuration requirements with the PCB or terminal block layout.

Selection Notes

Select this component when third-order attenuation characteristics are necessary for broadband noise reduction. The 10 A current rating suits moderate power applications requiring robust filtering. The axial bushing form factor is ideal for direct panel penetration where space constraints limit radial or surface-mount options. Verify that the 0.023 µF capacitance aligns with the target cutoff frequency requirements.

Part Context

This part belongs to the Tusonix 4253 series of custom EMI feedthrough filters. These components are designed for military and industrial environments requiring reliable RF suppression. The series typically offers various capacitance values and current ratings within the same mechanical footprint family.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.