4203-053

Overview

The 4203-053 is an LC (Pi) EMI feedthrough filter manufactured by Tusonix, a subsidiary of CTS Electronic Components. It features a capacitance of 5000 pF and supports a maximum DC current of 10 A. Designed for chassis mounting, this component utilizes a bushing configuration with a single turret lead. The unit operates within a temperature range of -55°C to +125°C and provides significant attenuation for electromagnetic interference applications.

Feature Summary

• LC Pi-filter topology for effective low-pass noise suppression
• Chassis-mount bushing design with turret lead for secure installation
• High current handling capability suitable for power line filtering

Applications

• Electromagnetic interference suppression in electronic enclosures
• Power line filtering for sensitive equipment
• RFI mitigation in industrial control systems

Procurement Notes

Verify the specific datasheet version for the 4203-053 to confirm mechanical dimensions and terminal configurations before integration. Ensure that the mounting hole diameter matches the bushing specifications. Confirm thermal management requirements are met given the 10 A current rating and operating temperature range. Cross-reference part numbers with official Tusonix documentation to avoid substitution errors.

Selection Notes

Select this component when a robust, high-current EMI filter is required for chassis-mounted applications. The Pi-filter architecture offers superior attenuation compared to simple capacitors. Consider the physical size constraints of the enclosure relative to the bushing dimensions. Evaluate the need for the specific 5000 pF capacitance value against circuit impedance requirements.

Part Context

This component belongs to the Tusonix 4203 series of EMI feedthrough filters. These filters are engineered for high reliability in demanding environments. The series typically includes various capacitance values and voltage ratings to suit different power line filtering needs across aerospace, military, and industrial sectors.

Replacement Considerations

Direct substitutes must match the 5000 pF capacitance, 10 A current rating, and bushing form factor. Verify compatibility with existing panel cutouts. Check if alternative manufacturers offer equivalent LC Pi-filter configurations with similar insertion loss characteristics.