3U power supply VPX336

DC/DCmultiple-outputswitching

Product Highlights

• Conduction-cooled COTS VPX power supply, VITA 62.0 compliant
• Fits standard VPX chassis per VITA 46.0 (3U x 4HP)
• High-efficiency single-stage converter with wide input voltage range
• Flexible power distribution across VS1, VS2 and VS3 enabled by oversized converters
• Tested to MIL-STD-461, MIL-STD-704 and MIL-STD-1275; I²C and Micro‑USB monitoring via onboard microcontroller

Product Information
The VPX336 series are conduction-cooled, commercial off-the-shelf (COTS) single-stage VPX power supplies designed to the ANSI/VITA 62.0 standard. They are built to fit standard VPX chassis as defined by VITA 46.0 (3U x 4HP) and deliver high overall efficiency while supporting a wide DC input range through advanced switching power architecture.

Each main converter is intentionally oversized to provide flexible configuration options: prioritize the 12 V rail for high-current loads or distribute power more evenly across VS1, VS2 and VS3 depending on system requirements. An embedded microcontroller provides real-time monitoring and control via I²C and a Micro-USB interface for communication and firmware updates. Mechanical keying, connectors and alignment features comply with VITA 62.

Technical Data

• Output power: 360 W (total)
• Efficiency: up to 90% (87% at 360 W full load)
• Input voltage: nominal 28 V DC, wide range 15–40 V DC
• Optional input: 48 V DC (33.5–49 V)
• Reverse polarity protection
• Protections: voltage-sense controlled OVP, UVP, OCP and OTP
• Management: microprocessor-controlled I²C monitoring (status, input and six output voltages/currents, temperatures); Micro-USB for comms and firmware
• Design: single-stage high-efficiency converter; no aluminum electrolytic capacitors
• Mechanical dimensions: 100.0 mm x 168.5 mm x 19.56 mm (3.94 in x 6.63 in x 0.77 in); weight 0.60 kg (1.3 lbs)
• Environmental / Compliance: tested to MIL-STD-461, MIL-STD-704, MIL-STD-1275
• Form factor: fits standard VPX chassis per VITA 46.0
• Cooling: conduction-cooled

Technical specifications

• Model: VPX336 (3U x 4HP, VITA 62 compliant)
• Output power: 360 W
• Efficiency: up to 90% (87% at full load)
• Input voltage: nominal 28 V DC (wide range 15–40 V DC)
• Optional input: 48 V DC (33.5–49 V)
• Protection: reverse polarity; voltage-sense controlled OVP, UVP, OCP, OTP
• Management: microprocessor-controlled I²C monitoring of status, input and six output voltages/currents and temperatures; Micro-USB for communication and firmware updates
• Design: single-stage high-efficiency converter; no aluminum electrolytic capacitors
• Mechanical: 100.0 mm x 168.5 mm x 19.56 mm; weight 0.60 kg
• Environmental / Compliance: MIL-STD-461, MIL-STD-704, MIL-STD-1275 tested
• Form factor compatibility: fits standard VPX chassis per VITA 46.0
• Cooling: conduction-cooled