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Manual-(p116)-st45sf-v1-5-6.pdf, Sfx form factor – SilverStone ST45SF Manual User Manual

Page 4

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4.7. SHORT CIRCUIT PROTECTION

4.8. POWER SIGNAL

Output short circuit is defined to be a short circuit load of less than 0.1 ohm.

In the event of an output short circuit condition on +3.3V, +5V, +12V or–12V output,
the power supply will shutdown and latch off without damage to the power supply.
The power supply shall return to normal operation after the short circuit has been
removed and the power switch has been turned off for no more than 2 seconds.

Figure:
T1: Power-on time shall be less than 500 ms (T1 < 500 ms).
T2: Rise time : 0.1 ms to 20 ms (0.1 ms ≤T2 ≤20 ms).
T3: Power-ok delay time: 100 ms < T3 < 500 ms
T4: Power-ok rise time: T4 ≤10 ms
T5 + T6: AC loss to output hold-up time :T5 + T6 ≥17 ms

POWER GOOD @ 115/230V,FULL LOAD 100 –500mSec.

POWER FAIL @115/230V,FULL LOAD 1 mSec. minimum

5. FAN NOISE REQUIREMENTS

5.1.The subject power supply is cooled by a self-contained,
80mm×15mm, 12VDC fan.

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6. ENVIRONMENTAL REQUIREMENTS

6.1. TEMPERATURE RANGE

The power supply will be compliant with each item in this specification for the
following Environmental conditions.

The subject power supply will withstand the following imposed conditions without
experiencing non-recoverable failure or deviation from specified output characteristics.

Vibration Operating – Sine wave excited, 0.25 G maximum acceleration, 10-250 Hz
swept at one octave / min. Fifteen minute dwell at all resonant points, where resonance
is defined as those exciting frequencies at which the device under test experiences
excursions two times large than non-resonant excursions.

Plane of vibration to be along three mutually perpendicular axes.

Operating +10 to +50 deg. C
Storage -20 to +80 deg. C

6.2. HUMIDITY

6.3. VIBRATION

6.4. GROUND LEAKAGE CURRENT

The power supply ground leakage current shall be less than 3.5 mA.

6.5. DIELECTRIC STRENGTH

Primary to Frame Ground : 1800 Vac for 1 sec.

Primary to Secondary : 1800Vac for 1 sec

Operating 5 –95% RH, Non-condensing
Storage 5 –95% RH, Non-condensing

SFX Form Factor