The 2N2905A is a PNP bipolar junction transistor from Solid State Devices Inc (SSDI). It features a maximum collector-emitter voltage of 40V, continuous collector current of 600mA, and a transition frequency of 200MHz.
PNP bipolar transistor with 40V collector-emitter breakdown voltage and 600mA collector current. Housed in a TO-39 metal can package for through-hole mounting.