FSP900M-60PJ 900W Medical ATX Power Supply
Brand: FSP Group
Model: FSP900M-60PJ
Key Features
- 1U size with 240 x 100 x 41 mm dimensions
- IEC 60601-1 & IEC 62368-1 certified
- Intel ATX12V V3.0 compliance
- Meets 80 Plus Gold efficiency standards
- Meets EN55011 Class B for electromagnetic compatibility
- BF class isolation
Product Description
This AC/DC switching power supply is designed for a 1U form factor, measuring 240 x 100 x 41 mm. It is capable of delivering 900 watts of continuous power. The PSU incorporates a built-in DC/DC converter for the +3.3V and +5V output rails to enhance load regulation. Its high-efficiency design complies with 80PLUS GOLD certification.
Input Specifications
| Parameter | Value |
|---|---|
| Input voltage | 90-264 VAC |
| Input frequency | 47-63 Hz |
| Input current | 9.5 A (rms) @115Vac, 60Hz 4.8 A (rms) @230Vac, 50Hz |
| Earth leakage current | 400 μA max. @ 264 VAC, 63 Hz |
| Touch current | 100 μA max. @ 264 VAC, 63 Hz |
Output Specifications
| Parameter | Value |
|---|---|
| Output voltage/current | See rating chart |
| Maximum output power | See rating chart |
| Ripple and noise | See rating chart |
| Protection | OVP: Latch off OCP & Shorted: Auto recovery OTP: Latch off |
Output Voltage/Current Rating Chart
| Outputs | Rating | Mini. Load | Maxi. Load | Load Regulation | Ripple & Noise*3 |
|---|---|---|---|---|---|
| +3.3 V | FSP900M-60PJ | 0 A | 20 A | ±5% | 50 mV P-P |
| +5 V | 0 A | 20 A | ±5% | 50 mV P-P | |
| +12 V1 | 0 A | 74.91 A | ±5%*2 | 120 mV P-P | |
| -5 V *1 | 0 A | 0.2 A | ±10% | 100 mV P-P | |
| -12 V | 0 A | 0.3 A | ±10% | 120 mV P-P | |
| +5 Vsb | 0 A | 3 A | ±5% | 50 mV P-P | |
| +3.3 V & +5 V Combine Output Power | 120W Maxi. | ||||
| +12V Total Output Power Maxi. | 899W | ||||
| Total Output Power | 900W | ||||
Notes:
- -5V is not for standard model but upon request.
- Load regulation -7% minimum at peak load conditions.
- Ripple and noise measurements shall be made under all specified load conditions through a single pole low pass filter with 20MHz cutoff frequency. Outputs shall be bypassed at the connector with a 0.1uF ceramic disk capacitor and a 10uF electrolytic capacitor to simulate system loading.
Power Excursion
Based on the power budgets and peak power of both the Processor and PCIe Add-in Cards, the following Peak Power Requirements are defined for the Power Supply.
| Power Excursion % of PSU Rated Size | Time for Power Excursion (TE) | Testing Duty Cycle | Time Constant (TC) |
|---|---|---|---|
| 100% | Infinite | ||
| 120% | 100ms | 25% | 300ms |
| 160% | 10ms | 12.5% | 70ms |
| 180% | 1ms | 8% | 11.5ms |
| 200% | 100us | 5% | 1900us |
[Diagram shows a power excursion waveform with labels TE and TC]
Environmental Specifications
| Parameter | Value |
|---|---|
| Operating temperature | 0°C to +50°C |
| Storage temperature | -20°C to +80°C |
| Relative humidity | 10% to 95% non-condensing |
| Derating | Derate from 100% at +50°C linearly to 50% at +70°C |
General Specifications
| Parameter | Value |
|---|---|
| Turn-on delay time | 2 Sec maxi. |
| Power factor | 0.95 minimum |
| Efficiency | Meet 80PLUS Gold (87%, 90%, 87%) |
| Hold-up time | 16 mS minimum at 115VAC, 80% load 16 mS minimum at 230 VAC, 80% load |
| Line regulation | ±1% maximum at full load |
| Inrush current | No damage to power supply |
| Withstand voltage | 4000 VAC from input to output (2 MOPP) 1500 VAC from input to ground (1 MOPP) 1500 VAC from output to ground |
EMC Performance (IEC60601-1-2)
| Standard | Performance |
|---|---|
| EN55011 | Class B conducted, Class B radiated |
| EN61000-3-2 | Harmonic distortion, Class A |
| EN61000-3-3 | Line flicker |
| EN61000-4-2 | ESD, ±15 KV air and ±8 KV contact |
| EN61000-4-3 | Radiated immunity, 9-28 V/m |
| EN61000-4-4 | Fast transient/burst, ±2 KV |
| EN61000-4-5 | Surge, ±1 KV diff., ±2 KV com. |
| EN61000-4-6 | Conducted immunity, 3-6 Vrms |
| EN61000-4-8 | Magnetic field immunity, 30 A/m |
| EN61000-4-11 | Voltage dip immunity, 30% reduction for 500 ms, >100% reduction for 10 ms |
Interface Signals
The electrical and timing characteristics of the PWR_OK signal are given in the table below.
[Diagram shows timing signals VAC, PS_ON#, +12VDC, +5VDC O/P's, +3.3VDC, PWR_OK with time markers T1 to T6]
| Signal Type | Characteristics |
|---|---|
| Logic level low | < 0.4 V while sinking 4 mA |
| Logic level high | Between 2.4 V and 5 V output while sourcing 200 μA |
| High-state output impedance | 1 KΩ from output to common |
| Power-on time (T1) | T1 < 200 ms |
| Rise time (T2) | 0.1 ms ≤ T2 ≤ 20 ms |
| PWR_OK delay (T3) | 100 ms < T3 < 250 ms |
| PWR_OK rise-time (T4) | T4 ≤ 10 ms |
| AC loss to PWR_OK hold-up time (T5) | T5 ≥ 16 ms |
| Power-down warning (T6) | T6 ≥ 1 ms |
Mechanical Specifications
The power supply has an 1U form factor with dimensions 240 x 100 x 41 mm.
[Diagrams show the physical layout of the power supply from different angles, including mounting points and airflow direction. Another diagram illustrates the output connectors with their IDs, cable lengths, and equivalent part numbers.]
Output Connectors and Cabling
| Output Connectors | Connector ID | Cable Length | Output Connectors (equivalent) |
|---|---|---|---|
| Mother board 24 pin | P1 | 500 mm | WST P24-I42002 |
| CPU 8 pin | P2, P3 | 500 mm | WST P8-I42002 |
| PCI-e Gen 5 | P4 | 500 mm * 2 | WST PD12-I30006FS4Z-B |
| SATA + PATA | PA + PB + PC | (500+155+155 mm) * 2 | MOLEX SD-67926-0311 MOLEX SD-67582-001 |
| PD + PE + PF | WST P4-A10202 |
Weight: 1.6 Kg
