Seagate Mobile HDD Product Manual, Rev. A
17
Drive Specifications
2.8
Environmental Specifications
This section provides the temperature, humidity, shock, and vibration specifications for Mobile HDD drives.
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
2.8.1
Shock
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be
applied in the X, Y, or Z axis.
2.8.1.1
Operating shock
These
drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 400 Gs based on
half-sine shock pulses of 2ms. Shocks should not be repeated more than one time per axis.
2.8.1.2
Non-operating shock
The non-operating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently
put into operation is 1000 Gs based on a nonrepetitive half-sine shock pulse of 1 ms duration.
Table 7
Environmental specifications
Parameters
Operating
Non-Operating
Ambient temperature
0° to 60°C (32° to 140°F)
-40° to 70°C (-40° to 158°F)
Temperature gradient
20°C per hour (36°F per hour) max,
without condensation
35°C per hour (63°F per hour) max,
without condensation
Humidity
5% to 95% non-condensing
(30% per hour)
5% to 95% non-condensing
(30% per hour)
Wet bulb
37.7°C (99.8°F) max
40°C (104°F) max
Altitude
-304.8m to 3048m
(-1000ft to 10,000ft)
-304.8m to 12,192m
(-1000ft to 40,000ft)
Note
Seagate does not recommend operating at sustained case temperatures above 60°C.
Operating at higher temperatures will reduce useful life of the product.
Note
The recommended storage period:
• 1 year under controlled conditions of 34°C 90%RH or less
• 90 days in uncontrolled storage conditions
