4201-000LF

Overview

The 4201-000LF is a third-order low-pass LC (Pi) EMI filter manufactured by Tusonix, a subsidiary of CTS Electronic Components. It features a capacitance of 1500 pF and a rated voltage of 200 V at 85°C. The component supports a maximum DC current of 10 A and utilizes an axial bushing package with a crimp terminal configuration. Designed for chassis mounting, it operates within a temperature range of -55°C to 125°C. The unit complies with RoHS3 standards and carries an MSL rating of 1.

Feature Summary

• Provides third-order low-pass filtering via an LC Pi network topology for effective EMI/RFI suppression.
• Features a robust axial bushing design with a crimp terminal for secure chassis panel installation.
• Capable of handling high continuous DC currents up to 10 A while maintaining signal integrity.

Applications

• Mobile device data line protection
• Chassis-mounted electronic equipment filtering
• High-current signal path EMI suppression

Procurement Notes

Verify the specific voltage derating curve for the 200V rating at elevated temperatures, as specifications often reference performance at 85°C. Confirm that the crimp terminal style matches the available tooling for the intended assembly process. Ensure the axial bushing dimensions align with the chassis panel hole requirements before finalizing the procurement order.

Selection Notes

Select this component when a third-order attenuation profile is required for high-current applications exceeding standard feedthrough capacitor limits. The 10 A current rating distinguishes it from lower-capacity alternatives in the 4200 series. Consider the axial bushing form factor if space constraints preclude flange-mounted solutions or if crimp termination is preferred over threaded connections.

Part Context

This part belongs to the Tusonix 4200 series of LC Pi EMI filters. Unlike simple feedthrough capacitors, this series integrates passive components into a single chassis-mountable unit. It shares the axial bushing mechanical interface with other parts in the family but differs in electrical characteristics such as capacitance value and current handling capabilities compared to variants like the 4204-051LF.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should verify compatibility with existing designs by comparing the 1500 pF capacitance, 10 A current rating, and 200 V voltage specifications against alternative LC Pi filters from the same manufacturer or other vendors.