High frequency reed switch products are used in switching high frequencies in a variety of RF applications such as computers and laptops, digital components in cellphones and phone systems, functional PCB test equipment, integrated circuit (IC) testers, digital component testers and asic testers, and more. A high frequency reed switch used in an RF reed relay is capable of switching and carrying RF up to 20 GHz, because the reed switch’s leads are composed of nickel/iron which has a relatively high permeability or µ (Mu).