Seeking help to identify the following common mode choke. The best guess is it a part from Sumida Corporation.

enter image description here

This part is from a refrigerator.

Any of the following information is greatly appreciated

  • Datasheet
  • Manufacture
  • Specification

Based on research it was assumed that following part might have similar specification. Currently not too sure.

Following are results form searches.

  • 1
    \$\begingroup\$ Where did it come from? \$\endgroup\$ Oct 6, 2020 at 2:16
  • \$\begingroup\$ @TonyStewartSunnyskyguyEE75 cuui dorm room refrigerator \$\endgroup\$ Oct 6, 2020 at 2:19
  • \$\begingroup\$ Yes looks like a 31 mH line choke. Why? Kemet source looks ok \$\endgroup\$ Oct 6, 2020 at 2:22
  • \$\begingroup\$ @TonyStewartSunnyskyguyEE75 Trying to suppress noise from a wall wart. Randomly placed this part, and it appears to work. Thus trying to work backward to confirm the solution. \$\endgroup\$ Oct 6, 2020 at 2:27
  • 1
    \$\begingroup\$ @TonyStewartSunnyskyguyEE75 thank you for you insights. \$\endgroup\$ Oct 6, 2020 at 19:08


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