4251-501

Overview

The Tusonix 4251-501 is a tubular EMI/RFI data line filter featuring a third-order Pi-type circuit topology. It provides one function with a rated voltage of 50V and a maximum DC current capacity of 20A. The component utilizes an axial bushing package with dimensions of 4.75mm diameter by 3.81mm height. It incorporates a capacitance value of 10,000 µF and achieves a maximum insertion loss of 70 dB. Designed for panel mounting, the unit operates within a temperature range up to 125 °C.

Feature Summary

• Utilizes a third-order Pi-type LC circuit configuration for enhanced signal filtering performance.
• Features an axial bushing package design suitable for direct panel mounting applications.
• Capable of handling high current loads up to 20A while maintaining specified attenuation levels.

Applications

• Data line filtering in electronic systems requiring EMI suppression
• Panel-mounted installations where axial bushing form factors are required
• High-current signal paths needing robust RF attenuation

Procurement Notes

Verify compliance requirements as the component is noted as non-RoHS compliant and lead-containing. Confirm that the 50V rating and 20A current capacity align with specific system electrical constraints. Ensure panel mounting provisions accommodate the specified physical dimensions and thread specifications for secure installation.

Selection Notes

Select this component when a third-order Pi-filter topology is necessary for superior noise rejection compared to standard single-stage filters. The 20A current rating makes it suitable for power-intensive data lines. Verify that the 50V voltage rating meets the operational requirements of the target circuit environment.

Part Context

This component belongs to the Tusonix 4251 series of tubular EMI filters. These devices are designed for general-purpose electromagnetic interference suppression in data transmission lines. The series offers various capacitance values and current ratings to suit different signal integrity needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for cross-reference information if alternative sourcing is required.

FAQ

What is the circuit topology of the 4251-501?

The 4251-501 utilizes a third-order Pi-type (LC) circuit topology.

What is the maximum insertion loss specification?

The maximum insertion loss is specified as 70 dB.