SilverStone ST30SF User Manual
SST-ST30SF
The reference SFX power supply
300W continuous power output at 50℃ operating temperature rated for 24/7 operation
80 PLUS Bronze level efficiency (82%~85% efficiency at 20%~100% loading)
Support standard SFX form factor and ATX via included bracket
Class-leading single +12V rail with 22A
Intelligent semi-fanless operation
Silent running 80mm fan with 18dBA minimum
Single PCI-E 6pin connectors support
Active PFC
SFX Form Factor
SST-ST30SF
300W Switching Power Supply
Active PFC Circuit
Full Range Input
1. GENERAL DESCRIPTION AND SCOPE
This is the specification of Model SST-ST30SF; AC-line powered switching power
supply with active PFC (Power Factor Correction) circuit, meet EN61000-3-2. Also,
5Vsb power is less than 0.5Winput at power off mode (PS_ON input at high state)
which is comply with ErP Lot 6 year 2013 requirement.
The specification below is intended to describe as detailedly as possible the functions and performance of the subject power supply. Any comment or additional
requirements to this specification from our customers will be highly appreciated and
treated as a new target for us to approach.
2. REFERENCE DOCUMENTS
The subject power supply will meet the EMI requirements and obtain main safety
approvals as following:
2.1. EMI REGULATORY
FCC: FCC Part 15, Subpart B, Class B
-CISPR 22: 1997, Class B
-ICES-003: 2004, Class B
-ANSI C63.4-2003
EMC: EN55022: 2006+AI: 2007, Class B
EN 61000-3-2: 2007, Class D
EN 61000-3-3: 2008
CISPR 22: 2005+A1: 2005, Class B
AS/NZS CISPR 22: 2006, Class B
2.2. SAFETY
CB: IEC 60950~1:2005(2nd Edition) and/or EN 60950~1:2006 +A11:2009
UL: UL 60951-1 , 2nd Edition, 2007-03-27
TUV: EN 60950-1:2006+All
3. INPUT ELECTRICAL SPECIFICATIONS
3.1. AC INPUT
Parameter Mi n. Nom. Max. Unit
(1)
Vin (115VAC) 90 115 132 VAC rms
Vin (230VAC) 180 230 264 VAC rms
Vin Frequency 47 -- 63 HZ
◆ Nominal voltages for test purposes are considered to be within ±1.0V of nominal.
3.2. INRUSH CURRENT
Maximum inrush current from power-on (with power on at any point on the AC sine)
and including, but not limited to, three line cycles, shall be limited to a level below
the surge rating of the input line cord, AC switch if present, bridge rectifier, fuse, and
EMI filter components. Repetitive ON/OFF cycling of the AC input voltage should not
damage the power supply or cause the input fuse to blow.
3.3. INPUT LINE CURRENT & POWER FACTOR (P.F.)
(At Full load)
AC input Input line current P.F.@ Full Load P.F.@ Pin=75W
115V < 3.5 Amps – rms > 0.95 > 0.8
230V < 2.0 Amps – rms > 0.9 > 0.65
3.4. EFFICIENCY
3.4.1 General
Under the load conditions defined in Table 1. and Table 2. The loading condition for
testing efficiency shown in Table 1 represents a fully loaded system. ~ 50% (typical)
loaded system. and ~ 20% (light) loaded system.
Table 1. Loading Table for Efficiency
Measurements
300W(loading shown in Amps)
Loading +12V +5V +3.3V -12V +5Vsb
Full 18.7 7.58 7.96 0.31 1.56
Typical 9.3 3.79 3.98 0.16 0.78
Light 3.7 1.52 1.59 0.06 0.31
Table 2. Minimum Efficiency Vs Load
Loading Voltage Full load Typical load Light load
Required Minimum Efficiency 115V >82% >85% >82%
Required Minimum Efficiency 230V >85% >87% >85%
◆ Minimum Efficiency for test purposes are considered to be within ±1.0% of nominal.
3.4.2 Standby Power Consumption (+5Vsb):
Input Power < 0.5W @+ 5Vsb/45mA & 230Vac input
PS_ON input signal @ High State
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