VANGUARD PSMU-350-3 CPCI-350Q-P-38 Redundant power module

Specific Parameters

Electrical Parameters
Input Voltage Range: 85-264V AC (47-63Hz), compatible with 12-36V DC (optional)
Output Power: Rated 350W, peak 380W (sustained for 10 seconds)
Output Voltages: +3.3V DC (60A), +5V DC (50A), +12V DC (15A), -12V DC (2A), +5V SB (3A, standby)
Conversion Efficiency: Typical 85% (230V AC input, 50%-100% load), full-load efficiency ≥82%
Voltage Regulation: ±0.5% (line regulation), ±1% (load regulation, full load range)
Isolation Voltage: 3000V AC (input-output, 1 minute), 500V AC (output-output, 1 minute)
Protection Functions: Overvoltage Protection (OVP, +3.3V: 3.6-4.0V; +5V: 5.5-6.0V), Overcurrent Protection (OCP, independent for each channel), Over-temperature Protection (OTP, 105℃±5℃), Short-circuit Protection (SCP, self-recovering)
Remote Monitoring: Supports PMBus protocol, capable of monitoring output voltage, current, temperature and fault status
Environmental Parameters
Operating Temperature: -40°C to 70°C (no derating, normal startup from -40°C to 0°C)
Storage Temperature: -40°C to 85°C
Relative Humidity: 5%-95% (non-condensing, continuous operation at 40°C/90% humidity)
Vibration Resistance: 5-500Hz, 10g acceleration (IEC 60068-2-6, sinusoidal vibration, each axis tested)
Shock Resistance: 50g acceleration, 11ms duration (IEC 60068-2-27, half-sine shock, 3 times per axis)
EMC Compliance: Conducted Emissions EN 55022 Class B, Radiated Emissions EN 55022 Class B; Immunity EN 61000-4-2 (±8kV contact discharge), EN 61000-4-3 (10V/m)
Certification Standards: UL 60950-1, CE, CB, RoHS 2.0
Mechanical Parameters
Dimensions: 261.6mm (L) × 160mm (W) × 40.4mm (H), conforming to 6U CompactPCI standard (6U×8HP)
Mounting Method: CPCI standard rack plug-in mounting, supporting hot-swapping (compliant with PICMG 2.11 hot-swap specification)
Housing Material: Die-cast aluminum alloy (black anodized surface), built-in heat sink (fanless passive heat dissipation)
Weight: Approximately 1.8kg
Connector Type: CPCI standard 64-pin power connector (compliant with IEC 61076-4-101)
Indicators: Power Normal (PWR, green), Redundancy Status (RED, yellow), Fault Alarm (ERR, red), Output Voltage Status Lights (green for each channel)

Product Performance

Adopting synchronous rectification technology and digital control chip, it achieves high conversion efficiency in the full load range. The typical efficiency of 85% can reduce system heat dissipation loss. The passive heat dissipation design has no mechanical fan, reducing fault points and improving long-term reliability. It supports N+1 redundant parallel connection, with load current sharing accuracy ≤3% when multiple modules are paralleled. When a single module fails, other modules automatically take over the load without power supply interruption, meeting the “no shutdown” requirement of critical systems.

Each output channel has an independent protection mechanism, with overvoltage and overcurrent response time ≤100μs, which can quickly cut off abnormal circuits and protect downstream CPCI boards (such as processors and I/O modules) from damage; the over-temperature protection uses dual temperature sensors to accurately monitor the core and housing temperature of the module, avoiding high-temperature derating.

The PMBus remote monitoring function can upload power supply parameters to the system management unit in real time, supporting remote restart and fault location to simplify operation and maintenance; the hot-swapping design allows online module replacement, no need to shut down the entire system during maintenance, adapting to 24/7 continuous operation scenarios. The Mean Time Between Failures (MTBF) is ≥800,000 hours (MIL-HDBK-217F, 25°C environment), complying with industrial-grade long-life operation standards.

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