The MRF5S9070NR1 from NXP Semiconductors is a RF Transistor with Frequency 800 to 960 MHz, Gain 17.8 dB at 17.8 MHz, Power 70 W, P1dB 70 W, Supply Voltage 26 V. More details for MRF5S9070NR1 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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