The RFP100-100 is an atteuator resistor ( Not a transistor)
100W rating and 100Ohms resistance and rated DC - 2GHz
I see items from this company on a number of RF units I work on
Google is your friend

the first hit was for that device
You will probably find that that part # on that Motorola device is an inhouse number and you wont find any references to it
it will be a device made only for another RF company to their specifications. I suggest that because it doesnt mantch any of the standard Motorola numbering systems. Motorola will NOT release data for it
Dave