FSP 500W Medical 1U ATX Power Supplies

PA SERIES

Features

Design complies with IEC 60601-1 and IEC 60950-1
BF Class insulation
High efficiency meets 80PLUS GOLD
Design meets INTEL “Haswell” platform requirement
High altitude 5000 meters operation

Safety Standard Approval

Approvals include: CULUS, EN 60601-1, IEC 60601-1, TÜVRheinland Certified (ID 0008000000, E211696), CE.

Description

This series of AC/DC switching power supplies features a standard 1U ATX form factor (220 x 100 x 40.5 mm) and delivers 400 or 500 watts of continuous power. The PSU incorporates a DC/DC converter for +3.3V and +5V output rails to enhance load regulation. The design achieves high efficiency, complying with 80PLUS GOLD standards.

Input Specifications

Input voltage: 90-264 VAC

Input frequency: 47-63 Hz

Input current:

FSP400M-80PA: 5 A (rms) @ 115Vac, 60Hz; 2.5 A (rms) @ 230Vac, 50Hz
FSP500M-80PA: 6 A (rms) @ 115Vac, 60Hz; 3 A (rms) @ 230Vac, 50Hz

Earth leakage current: 300 μA max. @ 264 VAC, 63 Hz

Output Specifications

Output voltage/current: See rating chart.

Maximum output power: See rating chart.

Ripple and noise: See rating chart.

Protection

OVP (Over Voltage Protection): +3.3V, +5V & +12V, Latch off
OCP (Over Current Protection), Short: +3.3V, +5V & +12V, -12V, -5V, Latch off; +5Vsb, Auto-recovery
OTP (Over Temperature Protection): Latch off

Output Voltage/Current Rating Chart

Rating	FSP400M-80PA		FSP500M-80PA		Load Regulation	Ripple & Noise
	Mini. Load	Maxi. Load	Mini. Load	Maxi. Load
+3.3 V	0 A	18 A	0 A	20 A	±5%	50 mV P-P
+5 V	0 A	18 A	0 A	20 A	±5%	50 mV P-P
+12 V1	0 A	16 A	0 A	16 A	±5%	120 mV P-P
+12 V2	0 A	16 A	0 A	16 A	±5%	120 mV P-P
+12 V3	0.1 A	16 A	0.1 A	16 A	±5%	120 mV P-P
-5 V1	0 A	0.2 A	0 A	0.2 A	±10%	100 mV P-P
-12 V	0 A	0.5 A	0 A	0.5 A	±10%	120 mV P-P
+5 Vsb	0 A	3.0 A	0 A	3.0 A	±5%	50 mV P-P
+3.3V & +5V Combine Output Power	100W Maxi.		120W Maxi.
+12V Total Output Power	32A Maxi.		41A Maxi.
Total Output Power	400W		500W

Notes:

Optional -5V output is available upon request but not for standard models.
Ripple and noise measurements are made under all specified load conditions using a single pole low pass filter with a 20MHz cutoff frequency. Outputs are bypassed at the connector with a 0.1uF ceramic disk capacitor and a 10uF electrolytic capacitor to simulate system loading.
+12V1, +12V2 & +12V3 should be able to supply peak current of 18A for at least 10ms.

Environmental Specifications

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

Power factor: 0.9 minimum

Efficiency: Meets 80PLUS GOLD (87%, 90%, 87%)

Hold-up time: 12 mS minimum at 115VAC; 17 mS minimum at 230 VAC

Line regulation: ±1% maximum at full load

Inrush current: 50 A @ 115 VAC at 25°C cold start; 100 A @ 230 VAC at 25°C cold start

Withstand voltage: 4000 VAC from input to output (2 MOPP); 1500 VAC from input to ground (1 MOPP); 1500 VAC from output to ground

MTBF (Mean Time Between Failures): 100,000 hours at full load & 25°C ambient, calculated per MIL-HDBK-217

EMC Performance (IEC60601-1-2)

EN55011 / EN55022: Class B conducted, Class B radiated
FCC / VCCI: Class B conducted, Class B radiated
EN61000-3-2: Harmonic distortion, Class D
EN61000-3-3: Line flicker
EN61000-4-2: ESD, ±8 KV air and ±6 KV contact
EN61000-4-3: Radiated immunity, 10 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, 10 Vrms
EN61000-4-8: Magnetic field immunity, 30 A/m
EN61000-4-11: Voltage dip immunity: 30% reduction for 500 ms, 60% reduction for 100 ms, >95% reduction for 10 ms

Interface Signals

The interface signals section describes the behavior of the PS_ON (Power Supply On) and P.G (Power Good) signals. The PS_ON signal is an input that controls the power supply's operation. When PS_ON is turned ON, the power supply starts up. The P.G signal is an output that indicates when the power supply's outputs are stable and within their specified voltage ranges. It is asserted (goes high) after a delay (T2) following the PS_ON signal turning ON. The P.G signal is de-asserted (goes low) before the power supply fails (T3) when PS_ON is turned OFF.

Timing parameters:

T1 (Rise Time): Less than 20 ms
T2 (Power Good Delay Time): 100-500 mS
T3 (Power Fail Delay Time): Greater than 1 mS

Mechanical Specifications

The power supply unit has a standard 1U ATX form factor with dimensions of 220mm (length) x 100mm (width) x 40.5mm (height). It features mounting holes for installation. Airflow is typically directed through the unit via a fan, indicated by airflow arrows in the diagrams.

Connectors

No.	Output Connectors	Cable Length	Connector No.	Output Connectors (equivalent)
P1	Mother board 24 pin	500 mm	1	MOLEX 39-01-2240
P2	CPU 8 pin	500 mm	2	MOLEX 39-01-2080
P3	PCI-e 6+2 pin	500 mm	1	WST P8-142002K21B-B
PD, PE, PF, PG	SATA	500+150 mm	2+2	MOLEX SD-67926-0011 + SD-67582-0011
PA, PB, PC	PATA + Floppy con.	500+150+150 mm	1+1+1	AMP 1-480424-0 + AMP 171822-4

Weight

1.57 Kg

	FSP 500W Medical 1U ATX Power Supplies Datasheet \| PA Series Technical datasheet for FSP PA Series 500W Medical 1U ATX Power Supplies (FSP400M-80PA, FSP500M-80PA), detailing features, input/output specifications, environmental conditions, EMC performance, and mechanical dimensions, compliant with medical and safety standards.
	FSP Switching Power Supply Compliance Verification - FSP500M-80PA, FSP400M-80PA Series Verification of Compliance for FSP Group Inc. switching power supplies, models FSP500M-80PA, FSP500M-80UA, and FSP400M-80PA, confirming adherence to relevant EMC and medical equipment standards.
	FSP Switching Power Supply Safety Certificates - IEC 60601 Compliance This document compiles safety certificates for FSP Group Inc. switching power supplies, including models like FSP500M-80PA, FSP400M-80PA, and FSP500M-80UA. The certificates confirm compliance with IEC 60601 and EN 60601 standards, issued by TUV Rheinland.
	FSP Switching Power Supply Safety Certificates - IEC 60601 Compliance This document compiles safety certificates for FSP Group Inc. switching power supplies, including models FSP500M-80PA, FSP400M-80PA, and FSP500M-80UA, certified by TUV Rheinland according to IEC 60601 and EN 60601 standards.
	FSP Switching Power Supply CB Test Certificate for FSP400M-80PA, FSP500M-80PA, FSP500M-80UA Official CB Test Certificate issued by TÜV Rheinland for FSP Group Inc. switching power supplies, including models FSP400M-80PA, FSP500M-80PA, and FSP500M-80UA, certified to IEC 60601-1.
	FSP Switching Power Supply CB Test Certificate - Models FSP400M-80PA, FSP500M-80PA, FSP500M-80UA Official CB Test Certificate (Ref. DE 2-039687) for FSP Group Inc. switching power supplies, models FSP400M-80PA, FSP500M-80PA, and FSP500M-80UA, confirming conformity with IEC 60601-1 standards, issued by TÜV Rheinland.
	FSP Switching Power Supply Compliance Verification for FSP500M-80PA Series Official verification of compliance for FSP Group Inc. switching power supplies, including models FSP500M-80PA, FSP500M-80UA, and FSP400M-80PA, against key EMC and medical standards.
	FSP Switching Power Supply UL/CUL Compliance Certification Official UL and CUL certification documents for FSP Group Inc. switching power supplies, including models FSP400M-80PA, FSP500M-80PA, and FSP500M-80UA, detailing compliance with medical and dental safety standards.