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  1. VPT
21 October 2021

VPT Introduces 50V Input SVL Series of Space DC-DC Converters

VPT, a HEICO company (NYSE:HEI.A) (NYSE:HEI), announces the availability of its SVLFL, SVLHF, SVLTR, and SVLSA Series of 50 volt (V) space-qualified DC-DC converters. Characterised by Total Ionising Dose (TID) performance, including Enhanced Low Dose Rate Sensitivity (ELDRS), to 60 krad, the series is operable over the full military temperature range (-55°C to +125°C), with no power derating, and is suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space missions, and launch vehicle programmes.

With a wide input voltage range of 30V to 60V, the SVL series of DC-DC converters are designed specifically for space applications facing harsh radiation environments, with guaranteed performance through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis.

“The SVL families add 50V input versions that offer a wide input range of 30 to 60V with an 80V transient capability for the higher voltage satellite busses that are becoming more common worldwide.” Said VPT’s vice-president of engineering, Leonard Leslie. “The new SVL 50V input series of isolated DC-DC converters meets the same radiation tolerance levels of the SVL 28V input series of 60 krads TID and single event effects capability with no destructive events to LET = 85 MeV/mg/cm².”

The SVLFL (120W), SVLTR (40W), SVLHF (20W), and SVLSA (6W) will be qualified to MIL-PRF-38534 Class H and Class K pending DLA approval.

The availability of the SVL Series is subject to all applicable US export licence restrictions and regulations.

When your programme needs true military-grade high-reliability DC-DC converters, EMI filters and other power accessories qualified to MIL-PRF-38534 Class H and Class K, count on...
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