FSP500-80MPD – 500W Medical ATX Power Supplies
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The FSP500-80MPD medical ATX power supply delivers up to 500W of continuous output power from a 90–264 VAC input. Its 140 × 150 × 86 mm enclosure follows the standard ATX format, making it suitable for medical computers and other healthcare equipment built around conventional PC hardware. The output architecture provides +3.3V, +5V, three +12V rails, -12V and +5V standby outputs, with an optional -5V rail available on request. A DC/DC converter is incorporated on the +3.3V rail to support load regulation. Electrical isolation includes 4000 VAC from input to output, corresponding to 2 MOPP, together with BF Class insulation. The unit is rated for operation from 0°C to +50°C at full output, with linear derating above +50°C. Its cable assembly includes motherboard, CPU, PCIe, SATA, PATA and floppy connections for integration into complete ATX systems.
The FSP500-80MPD is a 500W AC/DC switching power supply designed for medical and healthcare equipment that uses a standard ATX mechanical format. It supports universal 90–264 VAC input, provides multiple regulated ATX output rails, and combines 80 PLUS Gold efficiency, BF Class insulation and 2 MOPP input-to-output isolation for demanding medical integration projects.
Its standard 140 × 150 × 86 mm enclosure and included ATX-style cable set simplify use in medical computers, diagnostic platforms and other embedded systems based on conventional PC hardware.
Range features
A high level overview of what this range offers
- 500W continuous output: Supports multi-rail ATX medical computing systems.
- 90–264 VAC universal input: Allows operation across common international mains supplies.
- Standard 140 × 150 × 86 mm ATX format: Simplifies integration into compatible equipment enclosures.
- 80 PLUS Gold efficiency: Rated at 87%, 90% and 87% for reduced power loss and heat generation.
- IEC 60601-1 and IEC 60950-1 design: Supports integration into medical and IT-based equipment platforms.
- BF Class insulation: Intended for medical equipment applications requiring appropriate insulation performance.
- 4000 VAC input-to-output withstand voltage: Provides 2 MOPP isolation between mains input and DC outputs.
- 250 µA maximum earth leakage current: Supports controlled leakage-current design targets.
- Three +12V rails with 38A combined capacity: Suitable for processors, expansion cards and peripheral loads.
- Comprehensive protection functions: Includes overvoltage, overcurrent and short-circuit protection.
- Operation up to 5,000 metres altitude: Supports use in elevated installation environments.
- ATX motherboard, CPU, PCIe and peripheral connectors: Reduces the need for additional cable adaptors.
Downloads
for FSP500-80MPD - 500W Medical ATX Power Supplies
What’s in this range?
All the variants in the range and a comparison of what they offer
| Specification | Value |
|---|---|
Power conversion | AC/DC switching power supply |
Continuous output power | 500W |
Form factor | Standard ATX |
Dimensions | 140 × 150 × 86 mm |
Weight | 1.817 kg |
Input voltage | 90–264 VAC |
Input frequency | 47–63 Hz |
Input current | 8A RMS at 115 VAC, 60 Hz; 4A RMS at 230 VAC, 50 Hz |
Earth leakage current | 250 µA maximum at 264 VAC, 63 Hz |
Power factor | 0.9 minimum |
Efficiency | 80 PLUS Gold; 87%, 90%, 87% |
Hold-up time | 12 ms minimum at 115 VAC; 17 ms minimum at 230 VAC |
Line regulation | ±1% maximum at full load |
Inrush current | 50A at 115 VAC; 100A at 230 VAC, measured at 25°C cold start |
Calculated MTBF | 100,000 hours at full load and 25°C ambient, calculated using MIL-HDBK-217 |
Platform requirement | Intel Haswell |
Maximum operating altitude | 5,000 metres |
| Output | Minimum Load | Maximum Load | Load Regulation | Ripple and Noise |
|---|---|---|---|---|
+3.3V | 0.1A | 24A | ±5% | 50 mV peak-to-peak |
+5V | 0.1A | 20A | ±5% | 50 mV peak-to-peak |
+12V1 | 0.2A | 16A | ±5% | 120 mV peak-to-peak |
+12V2 | 0A | 16A | ±5% | 120 mV peak-to-peak |
+12V3 | 0.1A | 16A | ±5% | 120 mV peak-to-peak |
-5V, optional | 0A | 0.2A | ±10% | 100 mV peak-to-peak |
-12V | 0A | 0.5A | ±10% | 120 mV peak-to-peak |
+5Vsb | 0A | 3A | ±5% | 50 mV peak-to-peak |
Combined +3.3V and +5V output | — | 130W maximum | — | — |
Combined +12V output | — | 38A maximum | — | — |
Total output | — | 500W | — | — |
The -5V output is not included in the standard configuration and is available on request. Ripple and noise values apply when measured through a single-pole, 20 MHz low-pass filter, with a 0.1 µF ceramic capacitor and 10 µF electrolytic capacitor connected at the output connector.
| Protection Function | Behaviour |
|---|---|
Overvoltage protection on +3.3V, +5V and +12V | Latching shutdown |
Overcurrent and short-circuit protection on +3.3V, +5V and +12V | Latching shutdown |
Short-circuit protection on -12V and optional -5V | Automatic recovery |
Short-circuit protection on +5Vsb | Automatic recovery |
| Environmental Specification | Rating |
|---|---|
Operating temperature | 0°C to +50°C |
Storage temperature | -20°C to +80°C |
Relative humidity | 10% to 95%, non-condensing |
Output derating | Linear derating from 100% at +50°C to 50% at +70°C |
| Insulation and Safety Specification | Rating |
|---|---|
Design standards | IEC 60601-1 and IEC 60950-1 |
Insulation classification | BF Class |
Input-to-output withstand voltage | 4000 VAC, 2 MOPP |
Input-to-ground withstand voltage | 1500 VAC, 1 MOPP |
Output-to-ground withstand voltage | 1500 VAC |
Approval markings | cURus Recognised Component, file E211696; EN 60601-1 and IEC 60601-1 certification marking; CE |
| EMC Standard or Test | Performance |
|---|---|
IEC 60601-1-2 | Medical EMC performance framework |
EN 55011 / EN 55022 | Class B conducted and Class B radiated emissions |
FCC / VCCI | Class B conducted and Class B radiated emissions |
EN 61000-3-2 | Harmonic distortion, Class D |
EN 61000-3-3 | Line flicker |
EN 61000-4-2 | ESD: ±8 kV air and ±6 kV contact |
EN 61000-4-3 | Radiated immunity: 10 V/m |
EN 61000-4-4 | Fast transient and burst: ±2 kV |
EN 61000-4-5 | Surge: ±1 kV differential and ±2 kV common mode |
EN 61000-4-6 | Conducted immunity: 10 Vrms |
EN 61000-4-8 | Magnetic-field immunity: 30 A/m |
EN 61000-4-11 | 30% reduction for 500 ms; 60% reduction for 100 ms; more than 95% reduction for 10 ms |
| Signal Parameter | Timing |
|---|---|
T1 rise time | Less than 20 ms |
T2 power-good delay time | 100–500 ms |
T3 power-fail delay time | More than 1 ms |
| Reference | Connector | Cable Length | Quantity | Equivalent Connector |
|---|---|---|---|---|
P1 | 24-pin motherboard | 500 mm | 1 | MOLEX 39-01-2240 |
P2 | 8-pin CPU | 500 mm | 2 | MOLEX 39-01-2080 |
P3 | 6+2-pin PCIe | 500 mm | 1 | WST P8-I42002K21B-B |
PD, PE, PF, PG | SATA | 500 + 150 mm | 2 + 2 | MOLEX SD-67926-0011 and SD-67582-0011 |
PA, PB, PC | PATA and floppy | 500 + 150 + 150 mm | 1 + 1 + 1 | AMP 1-480424-0 and AMP 171822-4 |
FAQs
for FSP500-80MPD – 500W Medical ATX Power Supplies
The power supply is rated to deliver 500W continuously. The combined +12V rails can provide up to 38A, while the combined +3.3V and +5V outputs are limited to 130W.
It accepts 90–264 VAC at 47–63 Hz. Rated input current is 8A RMS at 115 VAC and 4A RMS at 230 VAC.
The design includes BF Class insulation and a 4000 VAC input-to-output withstand rating corresponding to 2 MOPP. It also provides 1500 VAC input-to-ground isolation corresponding to 1 MOPP. Compliance of the finished medical device must still be assessed at system level.
Earth leakage current is rated at 250 µA maximum when operating from 264 VAC at 63 Hz. Engineers should consider this value alongside all other leakage paths within the completed equipment.
The rated full-load operating range extends from 0°C to +50°C. Above +50°C, the available output must be linearly derated, reaching 50% of rated power at +70°C.
The cable assembly provides one 24-pin motherboard connector, two 8-pin CPU connectors, one 6+2-pin PCIe connector, four SATA connections, two PATA connections and one floppy connection.
No. The -5V rail is an optional configuration available on request, with a maximum rating of 0.2A.
Overvoltage, overcurrent and short-circuit faults affecting the +3.3V, +5V and +12V rails cause a latching shutdown. Short circuits on -12V, optional -5V and +5V standby use automatic recovery.
Output rise time is below 20 ms, while the power-good delay is between 100 and 500 ms. The specified power-fail delay is greater than 1 ms.
The design is rated for operation at altitudes up to 5,000 metres. Thermal loading, cooling performance and equipment-level insulation requirements should still be checked for the intended installation.
