4403-680LF

Overview

The 4403-680LF is an EMI feedthrough filter manufactured by Tusonix, a subsidiary of CTS Electronic Components. It features a capacitance of 5 pF with a rated voltage of 200V and a current rating of 20 A. The component utilizes an axial, pill-shaped package with dimensions of 0.315 inches in length and 0.090 inches in width. It operates within a temperature range of -55°C to +125°C and provides an insertion loss of 30 dB at 100 MHz.

Feature Summary

• Provides effective electromagnetic interference suppression through high-capacitance feedthrough design
• Supports high-current applications with a 20 A rating for robust power line filtering
• Features a compact axial pill package suitable for panel mounting and chassis integration

Applications

• Power supply input filtering for electronic equipment
• EMI suppression in industrial control systems
• Signal integrity protection in communication infrastructure

Procurement Notes

Verify the specific suffix LF indicates lead-free compliance against the manufacturer's official datasheet. Confirm that the axial pill package dimensions match the mechanical constraints of the target enclosure. Ensure the 20 A current rating aligns with the operational load requirements of the circuit design.

Selection Notes

Select this component when high current handling capability is required alongside significant capacitance for low-frequency noise attenuation. The axial configuration allows for direct panel penetration, simplifying grounding strategies compared to surface-mount alternatives. Evaluate thermal management needs given the operating temperature range and current capacity.

Part Context

This part belongs to the 4403 series of EMI feedthrough filters from Tusonix. These components are designed for high-performance noise suppression in environments requiring reliable filtering of both differential and common-mode interference. The series offers various capacitance values to suit different frequency and current requirements.

Replacement Considerations

Consult the official Tusonix catalog for cross-references. Verify electrical parameters such as capacitance tolerance, voltage rating, and physical dimensions before substituting with other manufacturers' feedthrough capacitors.