LF1290NP-472

Common Mode Chokes Overview

The LF1290NP-472 is a through-hole common mode choke manufactured by Sumida. It features an inductance of 4.7 mH at 1 kHz and a maximum DC current rating of 340 mA. The component has a maximum DC resistance of 1.6 Ohms and utilizes a two-line leaded mounting style. Its physical dimensions are specified as 0.669 inches in length. The device is constructed to be lead-free and compliant with RoHS standards, suitable for power line filtering applications.

Common Mode Chokes Feature Summary

• Common mode noise suppression capability
• Through-hole radial leaded construction
• Lead-free and RoHS compliant manufacturing

Common Mode Chokes Applications

• Power supply input filtering
• EMI suppression on AC/DC lines
• Signal integrity protection in low-current circuits

Common Mode Chokes Procurement Notes

Verify the specific datasheet version for the LF1290NP-472 to confirm exact mechanical tolerances and thermal ratings. Ensure compatibility with existing PCB footprint designs requiring through-hole mounting. Cross-reference the 340 mA current rating against actual circuit load requirements to prevent saturation. Confirm RoHS compliance documentation if required for final assembly audits.

Common Mode Chokes Selection Notes

Select this component when through-hole mounting is preferred over surface mount alternatives. The 4.7 mH inductance value targets specific low-frequency noise attenuation needs. Verify that the 1.6 Ohm DC resistance does not introduce excessive voltage drop in the target application. Consider the 340 mA current limit when designing for peak load conditions.

Common Mode Chokes Part Context

This part belongs to Sumida's passive components portfolio, specifically within the common mode choke category. It serves as a solution for electromagnetic interference reduction in electronic equipment. The product line emphasizes reliability and compliance with international environmental standards for electronic assemblies.

Common Mode Chokes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult Sumida technical support or authorized distributors for direct equivalents or pin-compatible alternatives.