Rad Hard MOSFETs
Military and space applications provide a unique challenge for today's system designers. Space hardware must operate in extreme environmental conditions, including exposure to severe ionizing radiation, demanding the use of radiation-hardened (rad hard) components.
Inventor of the HEXFET MOSFET, IR HiRel was the first manufacturer to offer rad hard power MOSFETs for space in 1985 and is now a known leader in radiation-hardened technology. Our broad rad hard MOSFET portfolio offers a range of hermetic packaging options screened to MIL-PRF-19500 JANS level and available as QPLs.
IR HiRel customers value our unparalleled expertise in power MOSFET radiation testing, and a suite of products and solutions engineered for optimal performance and longevity in extreme environmental conditions. You’ll find IR HiRel space power MOSFETs successfully used in thousands of programs for geosynchronous and geostationary orbit, Medium Earth Orbit (MEO) and Low Earth Orbit (LEO).
Explore our Rad Hard MOSFET Solutions
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Quality Documents |
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Quality Conformance Testing |
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Unlike standard commercial products, HiRel products must be submitted to various levels of quality conformance testing to ensure that the products are capable of performing to specifications in the often harsh environments of military and space applications. Both the United States and European community have each developed specifications that detail the sequence of quality conformance testing. In the United States, the Defense Logistics Agency (DLA) is the controlling agency and has issued specifications that govern the quality conformance testing sequence performed on semiconductor devices and hybrid modules, namely MIL-PRF-19500/MIL-STD-750, MIL-PRF-38534/MIL-STD-883 and MIL-PRF-38535/MIL-STD-883. MIL-PRF-19500/MIL-STD-750 are the controlling specifications for discrete semiconductors such as diodes and power MOSFETs. MIL-PRF-19500 directs discrete semiconductors to be manufactured to either JAN, JANTX, JANTXV, or JANS levels (Note: the JAN level is not allowed for MOSFETs). International Rectifier HiRel Products Group manufactures and tests hermetic products to one of three distinct quality conformance levels: (1) commercial hermetic, (2) source control drawing (SCD), or (3) MIL-PRF-38534, MIL-PRF-38535 qualified. |
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Screening and Quality Conformance Inspection Requirements |
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Glossary Class H: Class H is the standard military quality level provided in MIL-PRF-38534, General Specification for Hybrid Microcircuits. It is intended for space applications. Level B: Class level B defines the screening requirements for high reliability military applications as specified in MIL-STD-883 and is intended for use in class H products. Level S: Class level S defines the screening requirements for high reliability space applications as specified in MIL-STD-883 and is intended for use in class K products. JAN: JAN (Joint Army Navy) is the prefix assigned by the DLA to designate devices on the DLA qualified parts list. JANTX: Military screening level as specified in MIL-PRF-19500 for a DLA qualified device. JANTXV: Military with visual inspection screening level as specified in MIL-PRF-19500 for a DLA qualified device. JANS: Space level screening as specified in MIL-PRF-19500 for a DLA qualified device. |
HiRel Part Number Definition |
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Press Releases
QPL-qualified SupIR-SMD package for rad hard MOSFETs enables higher performing space power systems
IR HiRel offers enhanced radiation hardened MOSFET family for mission-critical applications in space
IR's R8 RAD-Hard MOSFETs Increase Efficiency Up to 6% While Reducing Footprint 50% compared to Existing Solutions
IR Introduces Dual Power MOSFETs in Single Compact Hermetic LCC-6 Surface Mount Package For Lightweight Space Applications
MOSFETs in New Patented SMD0.2 Package Drastically Reduce System Size and Weight in HiRel Space Applications