3U power supply SOSA™

DC/DCwith overheating protectionwith overcurrent protection

Overview
The Vicor SOSA™-aligned power supply is a COTS module for 3U Open VPX (VITA62) systems developed to the SOSA standard. It uses Vicor proprietary power-conversion technology to deliver high efficiency and high power density in a rugged, conduction-cooled 3U form factor. Up to four units can be paralleled to increase available output power while maintaining system-level current sharing without dedicated current-share pins. Current share accuracy is ±2A.

Key capabilities

• Designed for 3U Open VPX systems compliant with SOSA™
• Conduction-cooled rugged module optimized for power density
• Parallel operation of up to four supplies to scale output power
• Typical outputs: +12V main and +3.3V auxiliary
• Proprietary wireless current sharing (no dedicated current-share pins)
• Current share accuracy: ±2A

Features and benefits

• Scalable OpenVPX/VITA62 form-factor for MIL-COTS platforms
• Protections: overcurrent, overvoltage and overtemperature
• Meets military standards: MIL‑STD‑704F, MIL‑STD‑461G, MIL‑STD‑810G, MIL‑STD‑1275E
• Modular, high-reliability design suitable for aerospace and defense edge computing

Product variants (excerpt)
Part Number | Nominal Input (V) | Power (W) | Form-Factor | Conformal Coated | Output Voltage Config.
SOS028H3U800D001 | 18–45 | 800 | 3U | Coated + Au-plated connector | Parallelable, VITA46 No-Key Guide Socket
SOS028H3U800D000 | 18–45 | 800 | 3U | Coated + Au-plated connector | Parallelable, SOSA standard keying
SOS028H3U600C001 | 18–45 | 600 | 3U | Coated | Programmable, VITA46 No-Key Guide Socket
SOS028H3U480N000 | 18–45 | 480 | 3U | Coated | Programmable with NED, SOSA standard keying
SOS028H3U451D001 | 10–45 | 450 | 3U | Coated + Au-plated connector | Programmable, VITA46 No-Key Guide Socket
SOS028H3U301D001 | 10–45 | 300 | 3U | Coated + Au-plated connector | Programmable, VITA46 No-Key Guide Socket
SOS028H3U151D001 | 10–45 | 150 | 3U | Coated + Au-plated connector | Programmable, VITA46 No-Key Guide Socket

Resources

• Variant datasheets for SOSA family
• UG-801 – VITA62 3U Evaluation Board (user guide)
• 3D STEP geometry and mechanical drawings for 28V 3U VITA62 variants

Technical specifications

• Series / family: SOSA™-aligned power supply (VITA62 / 3U Open VPX)
• Nominal input ranges: 10–45 V and 18–45 V (variant-dependent)
• Available output power options: 150 W, 300 W, 450 W, 480 W, 600 W, 800 W
• Outputs: +12V main and +3.3V auxiliary (typical)
• Parallel capability: up to four units parallelable
• Current sharing: proprietary wireless current sharing; accuracy ±2A
• Cooling: conduction-cooled rugged design
• Protections: overcurrent, overvoltage, overtemperature
• Conformal coating options: Coated; Coated + Au-plated connector
• Mechanical interfaces/options: VITA46 No-Key Guide Socket; SOSA standard keying
• Military compliance: MIL‑STD‑704F, MIL‑STD‑461G, MIL‑STD‑810G, MIL‑STD‑1275E
• Evaluation board: VIT3UDCTEST01 (user guide UG-801)
• Typical applications: MIL-COTS VPX power systems for aerospace and defense edge compute requiring high power density and SOSA compatibility