STRIDER ESSENTIAL SERIES
The essential gold standard
SST-ST70F-ESG
SST-ST60F-ESG
SST-ST50F-ESG
High efficiency with 80 PLUS Gold certification
24/7 continuous power output with 40℃ operating temperature
Class-leading single +12V rail
Strict ±3% voltage regulation and low ripple & noise
Multiple protection circuitry
PCI-E 8pin and PCI-E 6pin connectors support
Silent running 120mm fan with 18dBA minimum
Active PFC
SPECIFICATION
SilverStone Strider Essential
ST70F-ESG
ST60F-ESG
ST50F-ESG
ATX12V / EPS 12V Switching
Power Supply
With Active PFC
80Plus Gold
PS/2
1.0 GENERAL REQUIREMENTS
This specification describes a 700 / 600 / 500 watts power supply. With 5 output
remote ON/OFF control for ATX-12V system and a “Power factor correction
(active PFC)” circuit at 100V-240Vac.
01
2.0 INPUT REQUIREMENTS
The AC mains steady-state input voltage shall be 100 to 240 Vrms
The power supply shall operate from 90 to 264 Vrms.
The power supply shall operate from an AC mains frequency of 47-63Hz.
The AC mains steady-state RMS input current shall be:
SST-ST70F-ESG:
10Amp (maximum) at 100-127Vrms/60 Hz
5Amp (maximum) at 200-240Vrms/50 Hz.
SST-ST60F-ESG:
8Amp (maximum) at 100-127Vrms/60 Hz
4Amp (maximum) at 200-240Vrms/50 Hz.
SST-ST50F-ESG:
8Amp (maximum) at 100-127Vrms/60 Hz
4Amp (maximum) at 200-240Vrms/50 Hz.
STRIDER ESSENTIAL SERIES
3.0 OUTPUT REQUIREMENTS
3.1 OUTPUT VOLTAGE AND CURRENT
SST-ST70F-ESG:
MINIMUM
LOAD
+3.3V
+5V
+12V
-12V
+5Vsb
+5Vsb peak current is 4A(less then 0.5S)
0.2A
1A
1A
0A
0A
NORMAL
LOAD
10A
10A
24A
0.25A
1A
MAXIMUM
LOAD
25A
25A
56A
0.3A
3A
LOAD
REG
±5%
±5%
±5%
±10%
±5%
LINE
REG
±1%
±1%
±1%
±2%
±1%
RIPPLE & NOISE
50mV P-P
50mV P-P
120mV P-P
120mV P-P
50mV P-P
(1) +3.3V & +5V total output not exceed 160W.
When +5V is load to 25A, the +3.3V maximum load is 10.6A.
When +3.3V is load to 25A, the +5V maximum load is 15.5A.
(2) All outputs shall be safety-isolated from the AC mains and share a common return.
This common return must be connected to supply chassis.
(3) Voltages and ripple are measured at the load side of mating connectors with a 0.1uF
monolithic ceramic capacitor paralleled by a 10uF electrolytic capacitor across the
measuring terminals.
02
NO
LOAD REGULATION CHARACTERISTICS
OUTPUT LOAD
LOAD CONDITION
+3.3V
+5V
+12V
-12V +5Vsb
1
2
3
4
5
6
7
8
9
10
Cond. 10 only at 115Vac/60Hz and less then 1 S
Cond. 1 only at 115Vac/60Hz and less then 100 mS
COND.1
COND.2
COND.3
COND.4
COND.5
COND.6
COND.7
COND.8
COND.9
COND.10
X
X
1.5A
25A
1.5A
1A
3.6A
10A
15.86A
14A
X
X
1A
1A
25A
5A
3.6A
10A
15.86A
14A
X
X
1A
8A
8A
56A
2.6A
24A
46.09A
52A
X
X
0A
0A
0A
0A
0.3A
0.25A
0.25A
0.3A
3.5A
3A
0.1A
0.1A
0.1A
0.1A
3A
1A
2.47A
3A
SST-ST60F-ESG:
MINIMUM
LOAD
+3.3V
+5V
+12V
-12V
+5Vsb
+5Vsb peak current is 3.5A(less then 0.5S)
(1) +3.3V & +5V total output not exceed 130W.
When +5V is load to 24A, the +3.3V maximum load is 3A.
When +3.3V is load to 24A, the +5V maximum load is 10A.
0.2A
1A
1A
0A
0A
NORMAL
LOAD
10A
10A
22A
0.25A
1A
MAXIMUM
LOAD
24A
24A
46A
0.3A
3A
LOAD
REG
±5%
±5%
±5%
±10%
±5%
LINE
REG
±1%
±1%
±1%
±2%
±1%
RIPPLE & NOISE
50mV P-P
50mV P-P
120mV P-P
120mV P-P
50mV P-P
03
(2) All outputs shall be safety-isolated from the AC mains and share a
common return. This common return must be connected to supply chassis.
STRIDER ESSENTIAL SERIES
(3) Voltages and ripple are measured at the load side of mating connectors with a 0.1uF
monolithic ceramic capacitor paralleled by a 10uF electrolytic capacitor across the
measuring terminals.
LOAD REGULATION CHARACTERISTICS
OUTPUT LOAD
NO
LOAD CONDITION
+3.3V
+5V +12V -12V +5Vsb
1
2
3
4
5
6
7
8
9
10
Cond. 10 only at 115Vac/60Hz and less then 1 S
Cond. 1 only at 115Vac/60Hz and less then 100 mS
COND.1
COND.2
COND.3
COND.4
COND.5
COND.6
COND.7
COND.8
COND.9
COND.10
X
X
1.5A
24A
1.5A
3A
3.6A
10A
13.41A
14A
X
X
1A
1A
24A
6A
3.6A
10A
13.41A
14A
X
X
1A
8A
8A
46A
2.6A
22A
39.39A
44A
X
X
0A
0A
0A
0A
0.3A
0.25A
0.26A
0.3A
3.5A
3A
0.1A
0.1A
0.1A
0.1A
3A
1A
2.57A
3A
SST-ST50F-ESG:
MINIMUM
LOAD
+3.3V
+5V
+12V
-12V
+5Vsb
+5Vsb peak current is 3.5A(less then 0.5S)
0.2A
1A
1A
0A
0A
NORMAL
LOAD
10A
9A
22A
0.25A
1A
MAXIMUM
LOAD
24A
20A
39A
0.3A
3A
LOAD
REG
±5%
±5%
±5%
±10%
±5%
LINE
REG
±1%
±1%
±1%
±2%
±1%
RIPPLE & NOISE
50mV P-P
50mV P-P
120mV P-P
120mV P-P
50mV P-P
04
(1) +3.3V & +5V total output not exceed 120W.
When +5V is load to 20A, the +3.3V maximum load is 7.5A.
When +3.3V is load to 24A, the +5V maximum load is 9A..
(2) All outputs shall be safety-isolated from the AC mains and share a common
return. This common return must be connected to supply chassis.
(3) Voltages and ripple are measured at the load side of mating connectors
with a 0.1uF monolithic ceramic capacitor paralleled by a 10uF electrolytic
capacitor across the measuring terminals.
LOAD REGULATION CHARACTERISTICS
OUTPUT LOAD
NO
LOAD CONDITION
+3.3V
+5V +12V -12V +5Vsb
1
2
3
4
5
6
7
8
9
10
Cond. 10 only at 115Vac/60Hz and less then 1 S
Cond. 1 only at 115Vac/60Hz and less then 100 mS
COND.1
COND.2
COND.3
COND.4
COND.5
COND.6
COND.7
COND.8
COND.9
COND.10
X
X
1.5A
24A
1.5A
3A
3.6A
10A
13.25A
12A
X
X
1A
1A
20A
6A
3.6A
9A
11.04A
12A
X
X
1A
7A
7A
39A
2.6A
20A
32.15A
36A
X
X
0A
0A
0A
0A
0.3A
0.25A
0.26A
0.3A
3.5A
3A
0.1A
0.1A
0.1A
0.1A
3A
1A
2.47A
3A
05
3.2 REMOTE ON/OFF CONTROL
The power supply shall accept a logic open collector level which will disable/ enable all
the output voltage (exclude + 5V standby).
As logic level is low, outputs voltage were enabled.
As logic level is high, outputs voltage were disabled.
Note: 1. Logic high level: 2.0-5.25V while sourcing 0.2mA maximum.
2. Logic low level: 0-0.5V while sinking 1.6mA maximum.
3. Rise Time: 15ms maximum (10%-90%).
STRIDER ESSENTIAL SERIES
3.3 OUTPUT VOLTAGE HOLD-UP TIME
16.0 mS minimum : at 115V / 60 Hz. (80%LOAD)
3.4 OPERATION AT NO LOAD
The power supply shall be capable of being operated with no load on any or all outputs
without damage. For no load on +3.3V & +5V, the output shall not exceed +4.3V & +6.5Vdc
and the power supply may shutdown and require by remote-control or remove AC power restart.
3.5 PROTECTION
3.5.1 OVER-VOLTAGE PROTECTION
In the event of an over-voltage condition on +3.3 & +5Vdc &+12V the power supply shall
shutdown and require remote control or remove the AC mains input to reset the system.
+5V : 6.5V (maximum)
+3.3V : 4.3V (maximum)
+12V : 15.5V (maximum)
There shall be protection from an output over-current event. The PSU may shutdown
form such an event and require power-on restart. The overload currents should be
ramped at a minimum rate of 10 A/s starting from full load.
3.5.2 OVER- CURRENT PROTECTION
OVER-CURRENT TEST VALUES:
SST-ST70F-ESG:
Output Voltage
Protecting trigger condition
3.3V
< 60A
5V
< 45A
12V
< 62A
SST-ST60F-ESG:
Output Voltage
Protecting trigger condition
SST-ST50F-ESG:
Output Voltage
Protecting trigger condition
3.3V
< 60A
3.3V
< 60A
5V
< 45A
5V
< 45A
12V
< 52A
12V
< 46A
06
3.5.3 SHORT-CIRCUIT PROTECTION
An O/P short circuit is defined as any O/P impedance of less then 0.1 ohms. The power
supply shall shutdown and latch off for shorting +3.3V, +5V or +12V rail to return or any
other rail. and +5VSB shall not cause any damage to the power supply. The power supply
shall either shutdown and latch off or fold back for shorting negative rail. +5VSB must be
capable of being shorted indefinitely, but when the short is removed, the power supply
shall recover automatically or by cycling PS_ON#. The power supply shall be capable
withstanding a continuous short-circuit to the O/P without damage or overstress to the unit
(for example to components, PCB traces, connectors) under the I/P conditions specified.
3.6 OUTPUT RISETIME
The cold-start enable main output voltage rise-time of all outputs shall be measured with
maximum load on all outputs. (with COND.9)
Rise time: +3.3V 20mS (maximum)
(10-90%) +5V 20mS (maximum)
+12 V 20mS (maximum)
-12 V 20mS (maximum)
The test condition: 115Vac/60Hz
3.7 OUTPUT OVERSHOOT/UNDERSHOOT
No output voltage shall overshoot / undershoot or generate spikes at turn-on or turn-off, during
momentary power loss, output short, or realistic input voltage or output load changes,
Overshoot/undershoot is defined as any output that exceeds the voltage tolerance plus or minus
an additional 5%. All outputs shall be measured with minimum load (COND.3)
+3.3V
+5V
+12V
-12V
Overshoot
3.63V
5.5V
13.2V
-13.8V
Undershoot
2.97V
4.5V
10.8V
-10.2V
+5Vsb
5.5V
4.5V
3.8 EFFICIENCY REQUIREMENT OF MAIN OUTPUT
The PSU should be at 87% efficiency with 100% of full load, at 90% efficiency with 50% of full
load and at 87% efficiency with 20% of full load in a “light” load or ideal condition. That should
be tested at nominal Input voltage is 115V/60Hz and load conditions defined in below Table.
07
ST70F-ESG：
STRIDER ESSENTIAL SERIES
loading
100%
50%
20%
ST60F-ESG：
loading
100%
50%
+12V +5V +3.3V -12V +5Vsb
46.09A 15.86A 15.86A 0.25A 2.47A
23.04A 7.93A 7.93A 0.12A 1.23A
9.22A 3.17A 3.17A 0.05A 0.49A
+12V +5V +3.3V -12V +5Vsb
39.39A 13.41A 13.41A 0.26A 2.57A
19.7A 6.71A 6.71A 0.13A 1.28A
20%
7.88A 2.68A 2.68A 0.05A 0.51A
ST50F-ESG：
loading
100%
50%
20%
+12V +5V +3.3V -12V +5Vsb
32.15A 11.04A 13.25A 0.25A 2.47A
16.07A 5.52A 6.62A 0.12A 1.24A
6.43A 2.21A 2.65A 0.05A 0.49A
3.9 EFFICIENCY REQUIREMENT OF STANDBY OUTPUT(230V/50Hz)
The +5Vsb supply efficiency should be greater then 50% with a minimun loading of 50mA and
input voltage is set up at 230Vac/50HZ when main O/P off ( PS_ON# high state).Meet Erp2013.
08
3.10 POWER GOOD SIGNAL TIME SEQUENCE
Measure condition :115V (FULL LOAD)
T1: PS_ON -- DC O/P within Spec.＜500mS
T2: RISETIME < 20mS
T3: Power Good Delay Time 100mS-500mS
T4: Power Good Rise-time＜10mS
T5: AC fail hold-up time＞16mS
T6: Power Fail Delay Time＞1mS
3.11 OUTPUT TRANSIENT RESPONSE
Expected output transient step sizes for each output. The transient load
slew rate is = 1.0 A/μs.
Table of DC Output Transient Step Sizes
ST70F-ESG：
Output
(% of rated output amps per Sec 3.1)
Max. step size
09
+12V
+5V
+3.3V
-12V
+5Vsb
(Adding external capactor)
10A (10000uF)
8A (6000uF)
8A (6000uF)
0.1A (350uF)
0.3A (6000uF)
ST60F-ESG：
STRIDER ESSENTIAL SERIES
Output
+12V
+5V
+3.3V
-12V
+5Vsb
(Adding external capactor)
ST50F-ESG：
Output
Max. step size
(% of rated output amps per Sec 3.1)
9A (10000uF)
8A (6000uF)
8A (6000uF)
0.1A (350uF)
0.3A (6000uF)
Max. step size
(% of rated output amps per Sec 3.1)
+12V
+5V
+3.3V
-12V
+5Vsb
(Adding external capactor)
Output voltages should remain within the regulation limits of Section 3.1, and
the power supply should be stable when subjected to load transients per above
table from any steady state load, including any or all of the following conditions:
• Load-changing repetition rate of 50 Hz to 10 kHz
•AC input range per Section 2.0
8A (10000uF)
8A (6000uF)
8A (6000uF)
0.1A (350uF)
0.3A (6000uF)
10
3.12 CAPACITIVE LOAD
The power supply should be able to power up and operate normally with the following
capacitances simultaneously present on the DC outputs. This capacitive loading
should be used to check all of function test, but without hold-up time.
Output
ATX12V
Capacitive load (uF)
+12V
+5V
+3.3V
-12V
+5Vsb
10000
6000
6000
350
6000
3.13 CLOSED-LOOP STABILITY
The power supply shall be unconditionally stable under all line/load/transient load
conditions including capacitive loads specified in Section 3.13. A minimum of
45 degrees phase margin and 10 dB gain margin is recommended at both the
maximum and minimum loads.
4.0 PHYSICAL ENVIRONMENT
4.1 TEMPERATURE
4.1.1 Operating Ambient: +0 to 40℃
4.1.2 Non-Operating Ambient(Storage): －40℃ to +70℃
4.2 HUMIDITY
4.2.1 Operating: To 85% relative humidity (non-condensing)
4.2.2 Non-Operating: To 95% relative humidity (non-condensing)
Note: 95%RH is achieved with a dry bulb temperature of 55℃ and
a wet bulb temperature of 54℃.
4.3 ALTITUDE
4.3.1 Operating: To 10,000ft
4.3.2 Non-Operating: To 50,000ft
11
STRIDER ESSENTIAL SERIES
5.0 REGULATORY COMPLIANCE
5.1 SAFETY REQUIREMENTS
-IEC 950
-TUV EN 60950
-NEMKO + CB REPOR
-CUL
Primary to Frame Ground: 1800 Vac for 1 sec.
Primary to Secondary: 1800 Vac for 1 sec.
Primary to Secondary: 20 Meg. ohms minimum.
Primary to FRAME GROUND: 20 Meg. ohms minimum.
The power supply ground leakage current shall be less than 3.5mA.
The power supply shall comply with CISPR 22, Class B, for both conducted
and radiated emissions with a 4dB margin..
5.2 DIELECTRIC STRENGTH
5.3 INSULATION RESISTANCE
5.4 GROUND LEAKAGE CURRENT
5.5 EMISSION REQUIREMENTS
6.0 OTHER REQUIREMENTS
6.1 INPUT CONNECTIONS
Refer to Mechanical Specifications for placement.The AC mains input are
through a three-circuit IEC type connector mounted on the rear of the
power supply chassis.
6.2 RELIABILITY
The power supply reliability, when calculated by “Bellcore” latest revision are
exceed 100,000 hours with all output at maximum load and an ambient
temperature of 25℃.
The special requirement is for cooling fan that MTTF be guarantee
over 20,000 hours at 40℃ ambient temperature.
12
7.0 MECHANICAL REQUIREMENTS
7.1 PHYSICAL DIMENSION
150 mm (W) × 86 mm (H) × 140mm (D)
7.2 CONNECTORS
M/B 24PIN connector
13
EPS 12V 8PIN connector
Signal
Yellow
Yellow
Yellow
Yellow
ATX 12V 4PIN (4+4PIN EPS 12V in split mode)
Black
Black
+12V
+12V
+12V
+12V
Signal
GND
GND
Pin
5
6
7
8
Pin
Pin
1
2
Signal
1
2
3
4
COM
COM
COM
COM
Pin
3
4
Signal
+12V
+12V
Black
Black
Black
Black
Yellow
Yellow
STRIDER ESSENTIAL SERIES
4PIN peripheral connector (HDD) 4PIN floppy connector (FDD)
Yellow
Black
Black
Red
SATA connector
Orange
Black
Red
Black
Yellow
Signal
+12V
COM
COM
+5VDC
Signal Pin
Pin
1
2
3
4
+3.3V 5
COM 4
+5V 3
COM 2
+12V 1
Pin
1
2
3
4
Signal
+5VDC
COM
COM
+12V
Red
Black
Black
Yellow
8PIN PCI Express connector
Signal Pin Pin Signal
Yellow
Yellow
Yellow
+12V 1 5 COM Black
+12V 2 6 COM Black
+12V 3 7 COM Black
Black sense1 COM 4 8 COM Black
6PIN PCI Express connector
Signal Pin Pin Signal
Yellow
Yellow
Yellow
+12V 1 4 COM Black
+12V 2 5 COM Black
+12V 3 6 COM Black
14
NO.G11220310
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