10
Hardware Specifications
Features
• This HDD unit has a finite usage lifetime. Therefore, be sure to back up all HDD data
periodically and/or prepare a backup HDD unit.
• The HDD unit's lifetime will vary, depending on the usage conditions and environ-
ment. The above value is calculated assuming an ambient temperature of 20°C and
333 hours of operation per month. (HDD access frequency of 20% or less)
• To use the hard disk longer by steady operation, read the attached “Instructions for
Using the Hard Disk” carefully.
Environment
• Using the HDD unit in an environment that is excessively hot and/or humid will
shorten the disk’s usage lifetime. A wet bulb temperature of 29°C or less is recom-
mended. This is equivalent to the following data.
Capacity
40GB
Average Seek Time 12msec (TYP)
Power Consumption
At Startup : 5.0W (MAX)
Read/Write : 1.8/1.8W (TYP)
During Wait : 0.2W (TYP)
Interface
PATA
Operation Lifetime
5 years, or 20,000 operating hours,whichever comes first
Weight
Approx. 200g
Operating
Temperature
PS-3710A
+5
°
C+50
°
C
PS-3711A
+5
°
C+45
°
C
Storage Temperature
-10
°
C+60
°
C
Ambient Humidity
10%RH to 90%RH (no condensation)
(Wet bulb temperature: 29°C or less)
Noise Resistance
(via Noise Simulator)
Noise Voltage: 1500Vp-p
Pulse Width: 50ns, 500ns, 1µs
Electrostatic Discharge
6kV
Vibration Resistance
4.9m/s
2
(10Hz to 25Hz) (When Operating)
Shock Resistance
3920m/s
2
(1ms, Half-sine shock pulse) (When Shipping)
Temperature
at 35°C
at 40°C
Humidity
no higher than 64%RH
no higher than 44%RH
