LS2803R3S/EM Vishay Hybrid - High Reliability Radiation Hardened DC-DC Converter

The Vishay / International Rectifier LS Series Hybrid - High Reliability Radiation Hardened DC-DC Converters are, high reliability devices designed for hostile radiation hardened environments. The LS-Series provide up to 30 watts output power, small size, low weight, integrated EMI filtering and a high tolerance to environmental stresses such as radiation, temperature extremes, mechanical shock, and vibration. All components are fully de-rated to meet the requirements of MIL-STD-975.

The LS-Series of converters incorporate a fixed frequency single forward topology with magnetic feedback and an internal EMI filter. These converters are capable of meeting the conducted emissions requirements of MIL-STD-461C without any additional components. All models include an external inhibit port and have an adjustable output voltage. They are enclosed in a hermetic 1.5" x 2.3" x 0.425" steel package and weigh less than 80 grams. The package utilizes rugged ceramic feed-through copper core pins and is sealed using parallel seam welding.

The LS-Series of DC-DC converters provide same mechanical outline, power ratings, for backward pin compatibility, to their lower radiation tolerant counterpart M3L and Military series ATS DC-DC converters. The common platform design allows for similarity between military and space system architectures. For higher output power applications the HM, M3H and M3G-Series of DC-DC converters are recommended.

Manufactured in a facility fully qualified to MIL-PRF38534, these converters are fabricated utilizing DLA Land and Maritime qualified processes.