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Model: MPM-825A
The MPM-825A is a medical grade AC/DC metal enclosed  ATX switching power supply. The MPM-825A medical power supply features auto-switched input circuitry, ATX output (3.3V/5V/-5V/12V/-12V/+5V stand-by), 280 watts output rating, low current leakage, long life ball-bearing fan and is IEC 60601-1 safety approved. The MPM-825A is designed for use with medical information systems and other medical purpose systems.
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Features
  • 280W ATX Medical Grade Power
  • Metal enclosed
  • Build-in long life ball bearing FAN
  • Over Voltage and Overload protection
  • MTBF>164,000 hr at 40 °C. Mil-217F.
  • Designed to meet medical application safety standards.
Input Specification
Input Type AC
Input Voltage From 90 to 130 VAC or 180 to 260 VAC, which is auto-switched by build in circuitry
Input Frequency 47-63 Hz
Inrush Current 40A at 115 VAC, 80A at 230 VAC
Output Specification
Outputs +5V +12V -12V -5V< +3.3V +5Vsb
Minimum Output Current 0A 0.1A 0A 0A 0A 0A
Rated Output Current 25A 10A 0.5A 0.5A 8.0A 0.72A
Maximum Output Current 30A 15A 1A 1A 15A 1.2A
Line Regulation 1% 1% 1% 1% 1% 1%
Load Regulation 3% 5% 2% 2% 2% 3%
Ripple and Noise (peak to peak) 50 mV 100 mV 120 mV 100 mV 50 mV 100 mV
Efficiency > 65%
MTBF 164,375 hours at 40 °C
Interface Signals and Internal Protection
Power On/Off This TTL compatible signal (active low) is use to switch ON the main output. When power on is disconnected from secondary common, all outputs except +5Vsb shall turn off.
Power Good Signal When power is turned on, the power good signal will go high 100ms to 500ms after all output DC voltages are within regulation limits.
Power Fail Signal The power fail signal will fall at least 1 ms before any of the output voltages lower the regulation limits.
Over Voltage Protection For some reason the power supply might fail to control itself, the build-in crowbar circuit will automatically shut down the outputs to avoid damaging the external circuits. The trip point of O.V.P. circuit is around 5.7V to 7.0V.
Safety Approvals, EMI and EMS specification
Power Supply Safety Approval
Designed to meet UL 2601-1
CSA 22.2 No. 601-1
EN 60601-1
EMS
IEC-801-2 8KV air discharge
IEC-801-3 3V/M
IEC-801-4 2KV
IEC-801-5 2KV
Radiation/Conduction
Desinged to meet FCC class "B"
EN 55022 class "B"
Environment Specification
Operating Temperature 0~70 °C
Storage Temperature -40~75°C
Altitude (max) up to 10,000 ft
Dimension
Width x Length x Height 5.9 x 5.5 x 3.4 " (inch)
 
Ordering Information
MPM-825A 280W medical grade ATX AC/DC switching power supply
 
See Also
MPM-842P 400W medical grade ATX AC/DC switching power supply with active PFC
MPM-A30H 300W medical grade fanless ATX AC/DC switching power supply with active PFC

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