Intersil's Satellite Applications Flow™ (SAF) devices are fully tested and guaranteed to 100kRAD total dose. These QML Class T devices are processed to a standard flow intended to meet the cost and shorter lead-time needs of large volume satellite manufacturers, while maintaining a high level of reliability. The Intersil HS-26C31RH-T is a Quad Differential Line Driver designed for digital data transmission over balanced lines and meets the requirements of EIA Standard RS-422. Radiation Hardened CMOS processing assures low power consumption, High-Speed, and reliable operation in the most severe radiation environments. The HS-26C31RH-T accepts CMOS inputs and converts them to RS-422 compatible outputs. This circuit uses special outputs that enable the drivers to power down without loading down the bus. Enable and disable pins allow several devices to be connected to the same data source and addressed independently.


  • QML Class T, Per MIL-PRF-38535
  • Radiation Performance
  • Gamma Dose 1 x 105 RAD(Si)
  • SEU and SEL Immune to 100MeV/mg/cm2
  • EIA RS-422 Compatible Outputs (Except for IOS)
  • CMOS Compatible Inputs
  • High Impedance Outputs when Disabled or Powered Down
  • Low Power Dissipation 2.75mW Standby (Max)
  • Single 5V Supply
  • Low Output Impedance 10Ω or Less
  • Full -55°C to +125°C Military Temperature Range
  • Electrically screened to SMD# 5962-96663


  • Line Transmitter for MIL-STD-1553 Serial Data Bus

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SBDIP 450
Active CFP 450

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
HS-26C31RH-T Datasheet Datasheet PDF 334 KB
Application Notes & White Papers
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB
AN9519: Using the HS-26C(T)31RH Radiation Hardened RS-422 Line Driver Application Note PDF 301 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
PCN10123 - Alternate Die Attach Material for Assembly of Intersil Hermetic Packaged Products - Intersil Palm Bay, FL. (ISP) Product Change Notice PDF 230 KB
hs-26c31rh Model IBS 34 KB
Intersil Space Products Brochure Brochure PDF 3.14 MB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
Standard Microcircuit Drawing 5962-96663 (HS-26C31EH, HS-26C31RH, HS-26C31RH-T, HS-26CLV31EH, HS-26CLV31RH) Other 0 KB
Intersil Commercial Lab Services Brochure PDF 364 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB
TB399: LET Threshold for SEU of the HS-26C(T)32RH Operating in Failsafe Mode Other PDF 141 KB

News & Additional Resources