4403-040LF

Overview

The 4403-040LF is an EMI feedthrough capacitor manufactured by Tusonix, a subsidiary of CTS Electronic Components. It features a capacitance of 27000 pF (0.027 uF) and a rated voltage of 50 V at 125°C. The component operates within a temperature range of -55°C to +125°C. It utilizes a threaded bushing configuration with a 4-40 UNC-2A thread size. Physical dimensions include a diameter of 0.125 inches, a length of 0.6 inches, and a height of 0.215 inches.

Feature Summary

• Provides electromagnetic interference suppression through axial feedthrough design
• Supports panel mounting via integrated threaded bushing interface
• Maintains stable electrical performance across extended industrial temperature ranges

Applications

• RF filtering in electronic enclosures
• Noise suppression for power distribution lines
• EMI mitigation in communication equipment

Procurement Notes

Verify the specific datasheet version for the 4403-040LF to confirm RoHS compliance status and REACH SVHC declarations prior to integration. Ensure that the 4-40 UNC-2A thread specification matches the panel cutout requirements. Confirm that the 50V rating and 27000 pF capacitance align with the circuit design constraints. Cross-reference manufacturer part numbers to avoid confusion with similar series components.

Selection Notes

Select this component when a low-inductance path to ground is required for high-frequency noise attenuation. The axial bushing style facilitates direct panel penetration. Consider the 50V rating and thermal limits when designing for environments exceeding standard ambient temperatures. Verify mechanical fit against the specified 0.125-inch diameter constraint.

Part Context

This component belongs to the Tusonix 4403 series of feedthrough capacitors. These devices are engineered for robust EMI/RFI filtering applications where space is limited and reliable grounding is critical. The series offers various capacitance values and voltage ratings to suit different circuit requirements while maintaining consistent physical form factors for standardized panel mounting solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.