Common mode choke identification

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Directlinq1982

Joined May 13, 2020
1
I have a circuit that failed on me and I think I have identified the faulty component. It is a common mode choke but has no identification marks on it. I have an identical board with the same component that works. How can I test it to get specs for a replacement? It is smd and picture is attached. Any help would be greatly appreciated. Its the square component at the bottom right. Thanks all.
 

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SamR

Joined Mar 19, 2019
2,770
Remove it and test with LCR meter to find value or if open. And welcome to AAC! It sure looks like a through-hole coil.
 
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