Radiation-hardened DC-DC power converters for space systems
VPT Inc., a HEICO company, announced the availability of a new series of radiation hardened DC-DC power converters, point of load converters, and EMI filters to power space systems.
The new SVR Series of space power products includes 24 new modules in 7 product families, all based on space-proven heritage designs and available qualified to MIL-PRF-38534 Class K. These are the first power conversion products commercially available that are out-of-the-box compliant to the new Aerospace Technical Operating Report (TOR) requirements for space power systems. The new SVR Series of power products are suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs.
VPT’s SVR Series also features maximum levels of radiation hardening with a Total Ionizing Dose (TID) level of 100 krad(Si). Unique to VPT, these products include Enhanced Low Dose Rate Sensitivity (ELDRS) in the total dose rating for maximum reliability. The Single Event Effects (SEE) rating for these products is 85 MeV-cm2/mg. All modules have been submitted to the Defense Logistics Agency (DLA) for Standard Microcircuit Drawings (SMDs) with most modules available on released SMDs.
The SVR Series performance in space programs is guaranteed through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVR Series is characterized for TID performance including ELDRS and SEE according to VPT’s DLA-approved Radiation Hardness Assurance (RHA) plan per MIL-PRF-38534, Appendix G, Level R. Characterization is performed at both the component level and at the SVR Series hybrid level.
Modules now available: