The SKY13455-31 from Skyworks Solutions is a RF Switch with Frequency 0.4 to 2.7 GHz, Insertion Loss 0.55 to 1.45 dB, Isolation 20 to 43 dB, Power 31 to 36 dBm, Power 1.2 to 3.9 W. Tags: Surface Mount, Antenna Tuning Switch. More details for SKY13455-31 can be seen below.