The SKY19237-001 from Skyworks Solutions is a RF Switch with Frequency 100 MHz to 6 GHz, Power 26 to 35 dBm, Power 0.4 to 3.16 W, Supply Voltage 2.5 to 4.8 V. Tags: Surface Mount, Antenna Tuning Switch. More details for SKY19237-001 can be seen below.