FSP700M-70PB – 700W AC/DC medical desktop power supply
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- Desktop power supplies
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- FSP Protek
The FSP700M-70PB medical ATX power supply is an enclosed AC/DC switching unit for medical PCs and related electronic equipment. It provides up to 700W of continuous output across the standard ATX supply rails, including two +12V outputs and a +5V standby rail. Its 165 × 150 × 86 mm PS2 enclosure is intended for integration into equipment that accommodates an internal ATX power supply. The electrical design addresses IEC 60601-1 and IEC 62368-1 requirements, with BF-class isolation and a 4,000VAC input-to-output withstand rating identified as 2 MOPP. Full-range 90–264VAC input, active power factor correction and specified Class B emissions support equipment intended for use across different mains regions.
Fixed cabling provides motherboard, processor, PCIe, SATA and PATA connections for system integration. This is an internal ATX power supply rather than an external desktop adaptor.
Range features
A high level overview of what this range offers
- 700W continuous output – Supports medical computing systems with multiple DC supply rails.
- PS2 ATX enclosure – Fits equipment designed around a 165 × 150 × 86 mm internal power supply.
- 90–264VAC full-range input – Allows operation across common regional mains supplies.
- Active PFC with minimum 0.9 power factor – Supports controlled mains current characteristics at loads of 20% or above.
- 80 PLUS Gold efficiency profile – Delivers 87%, 90% and 87% efficiency at the defined test points.
- IEC 60601-1 and IEC 62368-1 design alignment – Supports medical and information technology equipment safety assessment.
- BF-class isolation with 2 MOPP input-to-output rating – Provides reinforced isolation characteristics for medical equipment architectures, subject to full system evaluation.
- DC/DC conversion on +3.3V and +5V rails – Helps maintain output regulation as system loads change.
- Dual +12V rails rated at 30A each – Supports processors, expansion hardware and other high-current loads.
- Comprehensive protection functions – Includes overvoltage, overcurrent, overtemperature and short-circuit protection.
- Class B conducted and radiated emissions – Supports EMC integration in medical computing equipment.
- 0°C to +50°C full-load operation – Defines a practical operating range for enclosed system designs.
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for FSP700M-70PB - 700W AC/DC medical desktop power supply
What’s in this range?
All the variants in the range and a comparison of what they offer
| Specification | FSP700M-70PB |
|---|---|
Product type | Medical AC/DC ATX power supply |
Continuous output power | 700W |
Form factor | PS2 ATX |
Dimensions | 165 × 150 × 86 mm |
Weight | 2.32 kg |
Input voltage | 90–264VAC |
Input frequency | 47–63Hz |
Input current at 115VAC, 60Hz | 8A RMS |
Input current at 230VAC, 50Hz | 4A RMS |
Earth leakage current | 300µA maximum at 264VAC, 63Hz |
Power factor | 0.9 minimum at 20% load or above |
Efficiency | 80 PLUS Gold; 87%, 90%, 87% |
Turn-on delay | 2 seconds maximum |
Hold-up time | 17ms minimum at 115VAC and 230VAC |
Line regulation | ±1% maximum at full load |
Inrush current at 115VAC | 50A at 25°C, cold start |
Inrush current at 230VAC | 100A at 25°C, cold start |
Input-to-output withstand voltage | 4,000VAC, 2 MOPP |
Input-to-ground withstand voltage | 1,500VAC, 1 MOPP |
Output-to-ground withstand voltage | 1,500VAC |
Calculated MTBF | 150,000 hours at full load and 25°C ambient, MIL-HDBK-217 |
Medical safety design | IEC 60601-1 |
Additional safety design | IEC 62368-1 |
Isolation classification | BF class |
Operating temperature | 0°C to +50°C |
Storage temperature | −20°C to +80°C |
Relative humidity | 10% to 95%, non-condensing |
Output derating | Linear reduction from 100% at +50°C to 50% at +70°C |
| Output | Minimum Load | Maximum Load | Load Regulation | Ripple and Noise |
|---|---|---|---|---|
+3.3V | 0A | 24A | ±5% | 50mV P-P |
+5V | 0A | 30A | ±5% | 50mV P-P |
+12V1 | 0.1A | 30A; 35A peak | ±5% | 120mV P-P |
+12V2 | 0.2A | 30A; 35A peak | ±5% | 120mV P-P |
−5V | 0A | 0.2A | ±10% | 100mV P-P |
−12V | 0A | 0.5A | ±10% | 120mV P-P |
+5Vsb | 0.05A | 3.0A | ±5% | 50mV P-P |
Combined +3.3V and +5V output | — | 150W maximum | — | — |
Combined +12V output | — | 58A maximum; 780W peak | — | — |
Total output | — | 700W continuous | — | — |
| Protection and Timing Specification | Value |
|---|---|
Overvoltage protection | +3.3V, +5V and +12V rails; latch-off |
Overcurrent protection | +3.3V, +5V and +12V rails; latch-off |
Overtemperature protection | Main rails use latch-off; auxiliary and negative rails are identified with auto-recovery |
Short-circuit protection | Included |
Output rise time | Less than 20ms |
Power-good delay time | 100–500ms |
Power-fail delay time | More than 1ms |
| EMC Standard or Test | Performance |
|---|---|
IEC 60601-1-2 | Medical EMC performance |
EN 55011 / EN 55032 | 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 A |
EN 61000-3-3 | Line flicker |
EN 61000-4-2 | ESD: ±15kV air and ±8kV contact |
EN 61000-4-3 | Radiated immunity: 9–28V/m |
EN 61000-4-4 | Fast transient/burst: ±2kV |
EN 61000-4-5 | Surge: ±1kV differential and ±2kV common mode |
EN 61000-4-6 | Conducted immunity: 3–6V RMS |
EN 61000-4-8 | Magnetic field immunity: 30A/m |
EN 61000-4-11 | Voltage dip immunity: 30% reduction for 500ms, 60% reduction for 100ms and more than 95% reduction for 10ms |
| Output Connector | Cable Length | Connector Reference | Equivalent Connector |
|---|---|---|---|
Motherboard 24-pin | 500 mm | P1 | MOLEX 39-01-2240 |
CPU 8-pin | 500 mm × 2 | P2, P3 | MOLEX 39-01-2080 |
PCIe 6+2-pin | 350 mm × 2 | P4, P5 | WST P8-I42002, K21B-B |
SATA | 500 + 155 mm × 2 | PE+PF, PG+PH | MOLEX SD-67926-0011 and MOLEX SD-67582-0011 |
PATA | 500 + 155 mm | PA+PB | WST P4-A10202 |
FAQs
for FSP700M-70PB – 700W AC/DC medical desktop power supply
The power supply delivers up to 700W of continuous output. A combined +12V peak rating of 780W is also specified, but the peak duration must remain below 10ms.
No. It is an internal PS2 ATX power supply measuring 165 × 150 × 86 mm, with fixed motherboard, CPU, PCIe, SATA and PATA output cables.
It accepts 90–264VAC at 47–63Hz. Rated input current is 8A RMS at 115VAC and 4A RMS at 230VAC.
The unit has two +12V rails. Each rail is rated for up to 30A continuously and 35A peak, while their combined continuous limit is 58A.
The design includes BF-class isolation and a 4,000VAC input-to-output withstand rating identified as 2 MOPP. Suitability for a particular medical device must still be confirmed through complete equipment-level risk management, insulation coordination and compliance testing.
Earth leakage current is specified as 300µA maximum at 264VAC and 63Hz. Engineers should assess this value alongside the leakage contributions of the complete system.
The full rated output is specified up to +50°C. Above this temperature, the output must be reduced linearly until it reaches 50% of rated power at +70°C.
The unit provides overvoltage, overcurrent, overtemperature and short-circuit protection. The main +3.3V, +5V and +12V rails use latch-off behaviour for the specified protection functions, while auto-recovery is identified for the auxiliary and negative rails.
Connections include one 24-pin motherboard cable, two 8-pin CPU cables, two 6+2-pin PCIe cables, four SATA connection points arranged across two cable runs and two PATA connection points on one cable run.
Each rail must remain within its individual current rating, and the combined limits must also be observed. The +3.3V and +5V rails are limited to 150W combined, while the two +12V rails have a combined continuous limit of 58A and the complete supply remains limited to 700W continuous output.
