The SKYA21013 from Skyworks Solutions is a RF Switch with Frequency 0.1 to 6 GHz, Insertion Loss 0.35 to 1 dB, Isolation 18 to 34 dB, Power 39 dBm, Power 7.9 W. Tags: Surface Mount, Antenna Tuning Switch. More details for SKYA21013 can be seen below.