UMEC Proprietary Surface Mount Transformers

[shrtrnd]

Before I break out my magnifying glass as tweezers to dissect these things and count the
number of turns, I thought I'd ask if anybody knows anything about them.
Obtained a large number of UMEC SM transformers, but UMEC says they're proprietary
(in-house) numbers, and won't give me any info on them. Anybody recognize them?
TR-UT90358
TR-UT90359
TR-UT90360
Thanks