EMI220T-RC

Overview

The EMI220T-RC is a T-type LC network filter manufactured by Bourns Inc. It features a capacitance of 22 pF with a 20% tolerance and a rated voltage of 50 VDC. The component supports a maximum current of 5 A and includes an integrated series resistance of 0.05 Ohms. Designed for through-hole mounting, it utilizes a radial configuration with three leads spaced at a 2.54 mm pitch. The physical dimensions are 9 mm in length, 8 mm in height, and 3.2 mm in width.

Feature Summary

• Provides third-order low-pass filtering characteristics to attenuate electromagnetic interference.
• Integrates a low-value series resistor within the T-network topology.
• Utilizes a compact radial leaded package suitable for standard PCB layouts.

Applications

• General electronic equipment requiring EMI suppression
• Power supply input filtering stages
• Signal line noise reduction in consumer electronics

Procurement Notes

Verify component availability as the EMI220T-RC is listed as obsolete or end-of-life by the manufacturer. Confirm that alternative sources offer genuine parts matching the original datasheet specifications. Ensure that any substitute components maintain identical electrical ratings and mechanical footprint requirements for your specific design implementation.

Selection Notes

Select this component when a T-network filter with integrated damping resistance is required. The 5 A current rating suits moderate power applications. Verify that the 22 pF capacitance aligns with the target frequency attenuation needs. Ensure the 50 VDC rating exceeds the maximum circuit voltage. Check that the radial lead spacing matches the printed circuit board pad layout.

Part Context

This component belongs to Bourns' EMI/RFI filter family, specifically designed for noise suppression in electronic circuits. The EMI220T-RC represents a discrete solution compared to surface-mount alternatives, offering robustness for through-hole assembly processes. It serves as a passive component for maintaining signal integrity in noisy environments.

Replacement Considerations

Public confirmed substitute part numbers are not available due to the component's obsolete status. Designers must evaluate generic T-network filters with equivalent 22 pF capacitance, 5 A current handling, and similar physical dimensions. Cross-reference mechanical constraints carefully before selecting alternatives.