EMI221T-RC

Overview

The EMI221T-RC is a third-order LC T-type electromagnetic interference filter manufactured by Bourns Inc. It features a capacitance of 220 pF with a tolerance of 20%, rated for 50 V and 5 A current. The component utilizes radial through-hole termination with a 2.54 mm terminal pitch. Operating temperature range spans from -25°C to 85°C, and the body dimensions are 9 x 8 x 3.2 mm.

Feature Summary

• Third-order LC T-network topology for effective signal filtering
• Radial through-hole mounting configuration
• Designed for general-purpose electromagnetic interference suppression

Applications

• General-purpose electronic circuit noise suppression
• Power line filtering in low-voltage systems
• Audio equipment signal integrity protection

Procurement Notes

Verify component status as obsolete or limited supply before integration. Confirm datasheet revisions and lead times with authorized distributors. Ensure compatibility with existing PCB footprints and thermal requirements during final design validation.

Selection Notes

Select this component for applications requiring 5 A current handling and 50 V voltage ratings. The T-type network offers specific attenuation characteristics suitable for general EMI reduction. Verify that the 220 pF capacitance aligns with target frequency suppression needs.

Part Context

This part belongs to Bourns' EMI filter circuit portfolio, designed for suppressing electromagnetic interference in electronic circuits. It represents a passive filtering solution utilizing discrete LC components arranged in a T-configuration to attenuate high-frequency noise.

Replacement Considerations

Check for direct substitutes within the EMI2xxT series or equivalent T-network filters from other manufacturers. Verify matching electrical parameters including capacitance, current rating, and physical dimensions for seamless replacement.