Been looking for several hours for core information, example A fellow used this core, "B64290L48x830" and recommended it to me. Does anyone here know where I can learn what the numbers in the example mean, if you know what I mean. Thanks for the help.

 

Sue here you will find some info
https://www.tdk-electronics.tdk.com/en/529376/products/product-catalog/ferrites-and-accessories/epcos-ferrites-and-accessories/ring-double-aperture-cores/search-results---ring-double-aperture-cores?so={"orderingCode":"B64290L0048X830"}
https://pl.mouser.com/ProductDetail/EPCOS-TDK/B64290L48X830?qs=wDNl1cNI0GtrBfUtM5E1/Q==

L = AL * N^2

AL value for your core is 5460nH

 

Sue here you will find some info
https://www.tdk-electronics.tdk.com/en/529376/products/product-catalog/ferrites-and-accessories/epcos-ferrites-and-accessories/ring-double-aperture-cores/search-results---ring-double-aperture-cores?so={"orderingCode":"B64290L0048X830"}
https://pl.mouser.com/ProductDetail/EPCOS-TDK/B64290L48X830?qs=wDNl1cNI0GtrBfUtM5E1/Q==

L = AL * N^2

AL value for your core is 5460nH

Thanks for your time, looks like what I need.