SilverStone ST50NF User Manual
April, 2011
NO:G11214010
NIGHTJAR SERIES
ST50NF
Industrial-class fanless power supply
Fan-less thermal solution, 0 dBA acoustics
Efficiency 82%~85% at 20%~100% loading
500W continuous power output
Strict ±3% voltage regulation
PCI-E 8pin and PCI-E 6pin connector support
Powerful class-leading single +12V rail
Aluminum construction
Server-level components
Support ATX 12V 2.3 & EPS 12V
Active PFC
1-3-2. Warm Start
ST50NF
Silverstone Nightjar
ST50NF
ATX12V / EPS 12V Switching Power Supply
With Active PFC
Fan-less Thermal Solution
80Plus Bronze
PS/2
1. Input Requirements
1-1. Input Voltage
The power supply shall be operated at universal input voltage defined in the following table.
Lnput Voltage
Voltage
1-2. Frequency
The input frequency range is from 47Hz to 63Hz.
MIN
99
NOM
110-240
MAX
264
Conditions
Turn off at 132/264VAC full
load for 1 sec then turn on
at the peak of the input
voltage cycle at 25 C ambient.
o
Limits
No component over stress
or damage should occur to
the power supply.
Input fuse shall not blow.
1-4. AC Input Current
AC Input
115V
230V
MAX
6.5
4
Units
AMPS
AMPS
1-5. Efficiency
The minimum power supply system efficiency shall be >82%, measured at nominal
input voltage 115V or 230V and full loading.
1-6.Leakage current
3.5ma max, At 240Vac/60Hz
2. Output Requirements
2-1. Output Regulations
1-3. Inrush Curr ent
The max inrush current is 100A for 115/230VAC.
1-3-1. Cold Start
Conditions
115/230VAC, full load.
o
25 C ambient.
Limits
No component over stress
or damage should occur to
the power supply.Input fuse
shall ot blow.
01
Output Voltage
+5V
+12V
-12V
+3.3V
+5Vsb
Note:
1. The above voltage range should also include ripple and noise.
2. The output voltage should be measured at the terminals of output connector.
Range
±
5%
±
5%
±
10%
±
5%
±
5%
MIN
+4.75
+11.40
-10.80
+3.135
+4.75
Nominal
+5.00
+12.00
-12.00
+3.30
+5.00
MAX
+5.25
+12.60
-13.20
+3.465
+5.25
Units
Volts
Volts
Volts
Volts
Volts
02
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