The BGSA143ML10 from Infineon Technologies is a RF Switch with Frequency 400 MHz to 6 GHz, Insertion Loss 0.3 to 3.2 dB, Isolation 10 to 38 dB, Power 39 dBm, Power 7.94 W. Tags: Chip, Antenna Tuning Switch, Multi Configuration. More details for BGSA143ML10 can be seen below.