Condition : This is brand new old stock (NOS) in manufacturer's tube so buy with confidence.
General specs for reference (datasheet on request for details) :
SRFT-3034 is a NPN Bipolar Si power transistor from Motorola designed for UHF band. It is flange mount type with common emitter basing. It was originally designed for 960MHz cellular radio station in analog and digital mode but is also useful in the 900-980MHz range with its high power at 35W @ 960MHz (large heat sink please !) up into the air when you drive in little over 7W to its Base (7dB gain).
Great for your projects in any 903MHz (33-cm) ham band and 915MHz ISM applications. Another part TP-3034 from Motorola and SD-4017 from STMicro has the same specification so they are all interchangeable parts. Some people ask if I have the datasheet on the Motorola SRFT-3034. Attached please find one from my old backup of Motorola Technical data book but sorry the resolution is not very high enough to be shown clearly. As a matter of fact all the parts (SRFT-3034/TP-3034/SD-4017) are with the same specs. And you can use all materials from either one of them on your projects as they are more handy from the net. As a good start, you may find the schematics at 960MHz and board layout on datasheet of TP-3034 handy for reference as well. Get it cheap here before they are all gone from the market 'cos they are all obsoleted and new power chip is not cheap too ... AH, ONE MORE THING TO REMIND, HAVE A GOOD HEATINK WITH YOUR AMP !