Turns out I remembered I'd used some of those fans on a goggle/mask I modified to have fans on it.
The brand is Sunon, model number is KDE0503PEB1-8, which is the 30x30x6mm 5v version. I *think* you actually need 12v.
Check that lineup, they should have the model that suits your needs.
http://portal.sunon.com.tw/products.html
The TLP fan may be able to replaced with the 30x30x15mm version, which is available in 5v and 12v.
In any case, these Sunon fans were WAY better than the TLP pieces of crap. I'm surprised TLP used those POS fans for so long.