SPECIFICATION
SilverStone Essential Plus
ST50F-ES
ST40F-ES
ATX12V 2.3 Switching Power Supply
With Active PFC
PS/2
01
This specification defines the performance characteristics of a single phase 500
and 400 watts, 5 output power supply. This specification also defines worldwide
safety and electromagnetic compatibility requirements for the power supply which
is intended for use in computer products.
Nominal Voltage
115-230 Vrms
2.1. Input Voltage
2.1.1 ST50F-ES
2.1.1 ST40F-ES
1.GENERSAL
2.INPUT CHARACTERISTICS
1.1. Scope
Voltage Variation Range
103.5 - 253 Vrms
Nominal Voltage
115-230 Vrms
Voltage Variation Range
103.5 - 253 Vrms
02
2.2 Input Frequency
2.3 Max. Input AC Current
2.4 Inrush Current
2.2.1 ST50F-ES
2.2.2 ST40F-ES
Strider Essential Series
Nominal Frequency
50-60 Hz
Frequency Variation Range
47 Hz to 63 Hz
Nominal Frequency
50-60 Hz
* The power supply must operate at above frequency with 103.5 - 253VACrms
input voltage range.
The power supply must meet inrush requirements for any rated AC voltage,
during turn on at any phase of AC voltage, during a single cycle AC dropout
condition, during repetitive ON/OFF cycling of AC, and over the specified
temperature range. The peak inrush current shall be less than the ratings of its
critical components (including input fuse, bulk rectifiers, and surge limiting device).
Frequency Variation Range
47 Hz to 63 Hz
2.3.1 ST50F-ES
Max. Input Current
6.5A
Measuring Range
103.5 - 253 Vrms
2.3.2 ST40F-ES
Max. Input Current
5.5A
Measuring Range
103.5 - 253 Vrms
