The MilQor® series of high-reliability DC-DC converters brings SynQor’s field proven high-efficiency synchronous rectifier technology to the Military/Aerospace industry. SynQor’s innovative QorSeal® packaging approach ensures survivability in the most hostile environments. Compatible with the industry standard format, these converters operate at a fixed frequency, have no opto-isolators, and follow conservative component derating guidelines.
Product Features:
• Fixed switching frequency
• No opto-isolators
• Parallel operation with current share on MQFL
• Remote sense
• Clock synchronization
• Primary referenced enable
• Secondary referenced enable on MQFL
• Continuous short circuit and overload protection with auto-restart feature
• Input under-voltage and over-voltage shutdown
• Output voltage trim range (MQHL, MQHR and MQBL) +10% to -10%
• -55°C to +125°C Operating Temperature
Design Process:
Hi-Rel series converters are:
• Designed for reliability per:
–– NAVSO P-3641A guidelines
• Designed with components derated per:
–– MIL-HDBK-1547A
–– NAVSO P-3641A
Qualification Process:
Hi-Rel series converters are qualified to:
• MIL-STD-810
– consistent with RTCA/DO-160
• SynQor’s First Article Qualification
– consistent with MIL-STD-883
• SynQor’s Long-Term Storage Survivability Qual.
• SynQor’s on-going life test
• SynQor’s element evaluation for HB and ES Grade
Specification Compliance:
Hi-Rel series converters (with Hi-Rel filter) are designed to meet:
• MIL-HDBK-704
• RTCA/DO-160 Section 16, 17, 18
• MIL-STD-1275
• DEF-STAN 61-5 (Part 6)/(5, 6)
• MIL-STD-461
• RTCA/DO-160 Section 22
Our unique QorSeal® packaging approach provides a conduction-cooled mechanical assembly around an SMT constructed power circuit that is low-profile, light-weight, and shielded. This process provides three levels of Tin Whisker mitigation.
Input Voltage Range:
Ordering Information:
Bus Converters (Unregulated):
Brochure: https://www.synqor.com/document-viewer?document=MilQor-hirel-trifold.pdf
Datasheets: https://www.synqor.com/product-guide/military/module/hi-rel/dc-dc-converter