The standard Thales AOA transducers are either part number (P/N) 45150340 or P/N C16258AA, which I believe are interchangeable on CRJs but only one of which applies to the CRJ700/900. That's what the aircraft comes from Bombardier with.
There's also a BFGoodrich STC vane for the aircraft, which might be the one you're asking about, since the part numbers seem not to agree. Unless we're comparing OEm p/n and vendor p/n of course.
Afraid I don't know much about the internal gubbins in the AOA sensors, though.
