4251-002

Overview

The 4251-002 is a third-order low-pass LC (Pi) EMI filter manufactured by Tusonix, a subsidiary of CTS Electronic Components. It features a capacitance of 0.012 µF and supports a maximum DC current of 10 A. Designed for chassis mounting, the component utilizes an axial bushing configuration with UNC-2A threading. The unit operates within a temperature range of -55°C to +125°C and is constructed as a multilayer bushing filter.

Feature Summary

• Provides third-order low-pass filtering characteristics via an LC Pi network topology.
• Features a robust chassis-mountable design with integrated axial bushing for secure installation.
• Engineered for high-current applications with a rated capacity of 10 A.

Applications

• Chassis-mounted electromagnetic interference suppression in electronic enclosures
• Power line filtering for equipment requiring high current handling
• RFI mitigation in industrial control systems

Procurement Notes

Verify RoHS compliance status carefully, as sources indicate potential non-compliance for the base part number compared to the LF variant. Confirm threading specifications match existing panel cutouts. Ensure thermal environment remains within the specified -55°C to +125°C operational range during system integration.

Selection Notes

Select this component when a third-order attenuation profile is required for power lines carrying up to 10 A. The axial bushing form factor necessitates panel mounting rather than PCB integration. Compare against the 4251-001 if lower current or different capacitance values are needed, ensuring the UNC-2A thread size aligns with mechanical constraints.

Part Context

This component belongs to the 4251 series of multilayer bushing EMI filters produced by Tusonix. These filters are designed to suppress conducted emissions on power and signal lines. The series typically offers various capacitance and current ratings, with the 4251-002 specifically optimized for higher current applications using a Pi-filter architecture.

Replacement Considerations

The 4251-002LF is a lead-free compliant alternative within the same series. Verify that the LF designation does not alter mechanical dimensions or electrical performance before substitution.