The QPC1251Q from Qorvo is a RF Switch with Frequency 617 MHz to 5 GHz, Insertion Loss 0.4 to 0.95 dB, Isolation 20 to 30 dB, Power 32.5 to 36 dBm, Power 1.77 to 3.98 W. Tags: Surface Mount, Antenna Tuning Switch. More details for QPC1251Q can be seen below.