The single event effects and total dose radiation hardened IS-139ASRH, IS-139ASEH consist of four independent single or dual supply voltage comparators on a single monolithic substrate. The common mode input voltage range includes ground, even when operated from a single supply, and the low supply current makes these comparators suitable for low power applications. These types were designed to directly interface with TTL and CMOS inputs. The IS-139ASRH, IS-139ASEH are fabricated on our dielectrically isolated Rad Hard Silicon Gate (RSG) process, which provides immunity to single event latch-up and the capability of highly reliable performance in any radiation environment. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed below must be used when ordering. Detailed Electrical Specifications for the IS-139ASRH, IS-139ASEH are contained in SMD 5962-01510.


  • Electrically Screened to SMD # 5962-01510
  • QML Qualified per MIL-PRF-38535 Requirements
  • Radiation Hardness
  • Total Dose: 300krad(Si) (Max)
  • Single Event Latch-up: >84MeV/mg/cm2
  • Single Event Upset: >84MeV/mg/cm2
  • Operating Supply Voltage Range: 9V to 30V
  • Input Offset Voltage (VIO): 5mV (Max)
  • Quiescent Supply Current: 3mA (Max)
  • Differential Input Voltage Range Equal to the Supply Voltage


  • DC-DC Power Conversion
  • Pulse Generators
  • Timing Circuitry
  • Level Shifting
  • Analog to Digital Conversion


Title language Type Format File Size Date
Datasheets & Errata
star IS-139ASRH, IS-139ASEH Datasheet Datasheet PDF 153 KB
Application Notes & White Papers
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
Intersil Space Products Brochure Brochure PDF 3.16 MB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
Standard Microcircuit Drawing 5962-01510 (IS-139ASEH, IS-139ASRH) Other 0 KB
IS-139ASRH Neutron Test Report Report PDF 364 KB
Intersil Commercial Lab Services Brochure PDF 364 KB
IS-139ASRH SEE Test Report Report PDF 178 KB
IS-139ASEH Total Dose Test Report Report PDF 1.05 MB

printNews & Additional Resources

Type Date Sort ascending
Low Dose Rate Acceptance Testing Page Mar 26, 2020
Standard Data Package Page Mar 20, 2020
Rad Hard SMD Test Flow Page Mar 20, 2020
Rad Hard Test Reports Page Mar 20, 2020