The 2N3906TAR is a PNP bipolar junction transistor from On Semiconductor rated for 40V collector-emitter voltage and 200mA collector current. It comes in a through-hole TO-92-3 package.
2N3906TFR is a PNP bipolar transistor from On Semiconductor. It features 40V Vceo, 200mA Ic, 625mW power dissipation, and a DC current gain of 100 at 10mA, 1V.