The HS-201HSRH and HS-201HSEH are monolithic BiCMOS analog switches featuring power-off high input impedance, very fast switching speeds and low ON-resistance. Fabrication on our DI RSG process ensures SEL immunity and only very slight low dose rate sensitivity (ELDRS). These Class V/Q devices are tested and guaranteed for 300krad(Si) total dose performance. Power-off high input impedance enables the use of this device in redundant circuits without causing data bus signal degradation. ESD protection, overvoltage protection, fast switching times, low ON-resistance, and guaranteed radiation hardness make the HS-201HSRH ideal for any space application that requires improved switching performance.