4403-003

Overview

The 4403-003 is a feedthrough capacitor manufactured by Tusonix, a subsidiary of CTS Electronic Components. It features a capacitance of 2700 pF and a voltage rating of 100 V. The component supports a maximum DC current of 10 A and operates within a temperature range of -55°C to +125°C. It utilizes an axial package with a 4-40 thread specification. Physical dimensions include a diameter of 0.125 inches (3.18 mm) and a length of 0.215 inches (5.47 mm). The device provides an insertion loss of 25 dB at 100 MHz.

Feature Summary

• Provides effective electromagnetic interference suppression through feedthrough capacitor architecture
• Supports high direct current loads up to 10 Amperes
• Features robust thermal stability for operation in extreme environments from -55°C to +125°C

Applications

• Electromagnetic interference filtering in electronic circuits
• Power supply line conditioning
• Signal integrity protection in sensitive equipment

Procurement Notes

Verify the specific suffix requirements when ordering, as non-LF variants may exist. Confirm that the 4-40 threaded mounting interface matches the chassis panel thickness and hole specifications. Ensure the 100V rating and 10A current capacity align with the circuit design parameters. Check RoHS compliance status if restricted substances are prohibited in the final assembly.

Selection Notes

Select this component when a threaded feedthrough capacitor is required for high-current applications. The 2700 pF value offers a balance between capacitance and self-resonant frequency characteristics suitable for broadband noise attenuation. Consider the physical size constraints imposed by the 0.215-inch length and 4-40 thread requirement during mechanical layout planning.

Part Context

This part belongs to the 4403 series of EMI feedthrough filters produced by Tusonix. These components are designed for panel-mount installation using threaded connections. The series provides various capacitance values to address different filtering needs while maintaining consistent mechanical interfaces and high current handling capabilities for industrial and commercial electronics.

Replacement Considerations

Public confirmed substitute part numbers: 4403-033.