Luso Electronics, the sole UK and Ireland representative for SynQor power supplies and related components, announces availability of MilQor Hi-Rel DC-DC Converters. Besides military and aerospace applications, the high-reliability products are suited to the extremely demanding environmental electrical conditions of oil, gas and subsea exploration, monitoring and production plus other downhole activities.

This 5W DC-DC converter is housed in a new compact package that is only 1.075 x 1.075 x 0.27 inches (27.3 x 27.3 x 6.85mm). The MQSA-28-05S uses SynQor’s innovative QorSealâ„¢ packaging technology which ensures the high-efficiency synchronous rectifier technology inside can operate at full power operation from –55 °C to +125 °C. The conduction cooled QorSealâ„¢ packaging employs a gold plated nickel barrier finish on an extruded aluminium case.

The MQSA-28-05S accepts a continuous input voltage of 16-40V, and it is capable of handling a transient input voltage of 50V for 1 second. This over-voltage transient complies with MIL-STD-704F, RTCA/DO-160G Cat A/R, MIL-STD-1275D (Gen+Bat), and DEF-STAN 61-5 (Part 6)/5 (Gen+Bat) limitations.

Providing up to 5W of power at a typical 80% efficiency throughout the temperature profile, the MQSA-28-05S is a more reliable and cost effective solution than existing hermetic hybrid chip-and-wire converters.

The MQSA-28-05S provides a continuous short circuit and overload protection with input under-voltage lockout, over-voltage shutdown and auto-restart feature. There are no opto-isolators in the converter.

Designed for reliability per NAVSO-P3641-A guidelines with components derated per MIL-HDBK-1547A and NAVSO-P3641-A, and qualified per MIL-STD-810F- consistent with RTCA/D0-160E, the converters are an exceptional choice for low power High Reliability needs. Three separate screening levels are made available for your increasing level of mission critical requirements.

Sample and production quantities are available now from Luso Electronics.