Found 5 alternatives for PE42850MLBA-X by pSemi. Rf Switches — 32-VFQFN Exposed Pad.
IC RF SWITCH SP5T 1GHZ 32QFN
IC RF SWITCH SPDT 2.7GHZ 32QFN
IC RF SWITCH SPDT 3GHZ 32QFN
GAN SP4T 50W 0.001-1.2GHZ RF SWI