The MGF4934BM from Mitsubishi Electric US, Inc. is a RF Transistor with Frequency DC to 12 GHz, Gain 11.5 to 12.5 dB, Noise Figure 0.50 to 0.80 dB, Supply Voltage 2 V, Storage Temperature -55 to 125 Degree C. Tags: Flanged. More details for MGF4934BM can be seen below.