The MGF4965BM from Mitsubishi Electric US, Inc. is a RF Transistor with Frequency DC to 20 GHz, Gain 9.5 to 11.5 dB, Noise Figure 0.95 to 1.25 dB, Supply Voltage 2 V, Operating Temperature -55 to 125 Degree C. Tags: Flanged. More details for MGF4965BM can be seen below.