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Intel ATX Power Supply Design Guide
Version 0.9
5. Environmental Requirements
5.1 Temperature |
|
|
Operating ambient | +10 | °C min |
| +50 | °C max |
| (At full load, with a maximum rate of change of 5 °C/10 | |
| minutes, but no more than 10 °C/hr.) | |
Nonoperating ambient | ||
(Maximum rate of change of 20 °C/hr.) |
5.2 Thermal Shock (Shipping) | |
Nonoperating | |
| Duration of exposure to temperature extremes for each half |
| cycle shall be 30 minutes. |
5.3 Humidity |
|
Operating | To 85% relative humidity (noncondensing) |
Nonoperating | To 95% relative humidity (noncondensing) |
| Note: 95% RH is achieved with a dry bulb temperature of |
| 55 °C and a wet bulb temperature of 54 °C. |
5.4 | Altitude |
|
| Operating | To 10,000 ft |
| Nonoperating | To 50,000 ft |
5.5 | Mechanical Shock | |
| Nonoperating | 50 g, trapezoidal input; velocity change ≥ 170 in/s. |
|
| Three drops on each of six faces are applied to each sample. |
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