The MRF7S38040H from NXP Semiconductors is a RF Transistor with Frequency 3400 to 3800 MHz, Gain 14 dB at 14 MHz, Power 40 W, P1dB 40 W, Supply Voltage 30 V. More details for MRF7S38040H can be seen below.
1805 to 1880 MHz, 89 W Airfast RF Power LDMOS Transistor
4500 to 5900 MHz GaN HEMT for C-Band Radar Systems
GaN HEMT Transistor 1.2 to 1.4 GHz
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