The MMRF5019N from NXP Semiconductors is a RF Transistor with Frequency 1 MHz to 3 GHz, Gain 18 dB @ 2500 MHz, Power 43 dBm, P1dB 44 dBm, Supply Voltage 50 V. More details for MMRF5019N 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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