What type of transistor is this
My guess would be a BCX68-10 from Infineon. It also has a SOT-89 package and has the marking "CB". If this is true then it is an NPN BJT, 1A collector current, 20V Vce rated. Datasheet here:

https://www.infineon.com/dgdl/bcx68.pdf?folderId=db3a304314dca38901155ffc06d51dc7&amp;fileId=db3a3043156fd573011589ef403903e7

Not certain about this though, as the diagram doesn't quite match up: