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.


  • Electrically screened to DLA SMD# 5962-99618
  • QML qualified per MIL-PRF-38535
  • Radiation performance
  • High dose rate (50-300rad(Si)/s): 300krad(Si)
  • Low dose rate (0.01rad(SI)/s): 50krad(Si)
  • SEL immune: DI RSG process
  • Overvoltage protection (power on, switch off): ±30V
  • Power off high impedance: ±17V
  • Fast switching times
  • tON: 110ns (max)
  • tOFF: 80ns (max)
  • Low "ON" resistance: 50Ω (max)
  • Pin compatible with industry standard 201 types
  • Operating supply range: ±10V to ±15V
  • Wide analog voltage range (±15V supplies): ±15V
  • TTL compatible




  • High speed multiplexing
  • Sample and hold circuits
  • Digital filters
  • Operational amplifier gain switching networks
  • Integrator reset circuits


Design & Development