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The KEMET ST-101F4 is a through-hole common mode DC line filter designed for noise suppression in electronic circuits. It features a maximum DC resistance of 3.5 ohms and supports a DC current rating of 200mA. The component operates within a maximum temperature range of 75°C and complies with SVHC regulations, containing no substances of very high concern as of February 2026.
Verify the specific datasheet version to confirm current manufacturing status, as some sources indicate this part may be obsolete. Ensure the 200mA current rating and 3.5-ohm DC resistance meet the target circuit requirements before procurement.
Select this component when through-hole installation is required for low-current DC applications. The 200mA rating limits usage to low-power signals. Verify thermal constraints against the 75°C maximum operating temperature limit during design.
This component belongs to KEMET's passive filter portfolio, specifically targeting common mode interference in direct current systems. It complements other EMI/RFI solutions by offering a discrete, through-hole option for board-level noise reduction.
Check official KEMET documentation for active replacements, as some distributors list this part as obsolete. No confirmed substitute part numbers are available in public data.