Specification; Environment; Temperature And Humidity; Figure 17. Environmental Condition - Hitachi IC25N040ATCS04-0 - Travelstar 40GN 40GB UDMA/100 4200RPM 2MB 2.5" IDE Hard Drive Specifications

6.0 Specification

6.1 Environment

6.1.1 Temperature and humidity

Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude
Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude

Figure 17. Environmental condition

The system is responsible for providing sufficient air movement to maintain surface temperatures below
60°C at the center of top cover and below 63°C at the center of the drive circuit board assembly.
The maximum storage period in the shipping package is one year.

Figure 18. Limits of temperature and humidity

Operating conditions
5 to 55°C (See note below)
8 to 90% noncondensing
29.4°C noncondensing
20°C/hour
–300 to 3048 m (10,000 ft)
Nonoperating conditions
–40 to 65°C
5 to 95% noncondensing
40°C noncondensing
20°C/hour
–300 to 12,192 m (40,000 ft)
Specification (Environment)
100
90
80
70
60
Non Operating
50
40
30
20
10
0
-45 -35 -25 -15
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
31'C/90%
Operating
-5 5 15 25 35
Temperature (degC)
23
41'C/95%
WetBulb 40'C
WetBulb29.4'C
65'C/23%
55'C/15%
45 55 65