I just noticed something. Do you mean MPSA14 or MPSA13? The datasheet you posted is for MPSA13 and thats what ive been reading. The order code you posted is for MPSA14 though. In the datasheet for the MPSA14 it says Ic is 1.2A. The datasheet ive been looking at says that Ic means collector current and that one is only 500mA. Both look suitable to me except the MPSA13 is a little cheaper.