Intel ATX12V Benutzerhandbuch

ATX12V Power Supply Design Guide 

Version 2.0  

37 

The following subsections define recommended environmental specifications and test 
parameters, based on the typical conditions to which an ATX12V power supply may be 
subjected during operation or shipment. 

Operating ambient 

+10 °C to +50 °C 

(At full load, with a maximum temperature rate of change of 
 5 °C/10 minutes, but no more than 10 °C/hr.) 

Non-operating ambient 

-40 °C to +70 °C 

 

(Maximum temperature rate of change of 20 °C/hr.) 

Non-operating -40 

°C to +70 °C 

 15 

°C/min 

≤ dT/dt ≤ 30 °C/min 

Tested for 50 cycles; Duration of exposure to temperature 
extremes for each half cycle shall be 30 minutes. 

Operating 

To 85% relative humidity (non-condensing) 

Non-operating 

To 95% relative humidity (non-condensing) 

 

Note:  95% RH is achieved with a dry bulb temperature of 
55 °C and a wet bulb temperature of 54 °C. 

Operating 

To 10,000 ft 

Non-operating 

To 50,000 ft