Ferrite core marking !

[maxpayne]

I would like to know what "EE1621" means. I guess the 2 cores are E shaped, 16 is the outer dimension (not sure), 21 is for "what" ?


This is extracted page from a PI reference design-

http://ac-dc.power.com/design-suppo...sign-examples/rdr-420-10-w-cv-cc-usb-charger/