Hitachi IC25N040ATCS04-0 Specifications - Page 48

Nonoperating vibration, 6.3 Operating shock

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6.6.2 Nonoperating vibration The disk drive withstands the following vibration levels without any loss or permanent damage. 6.6.2.1 Random vibration The test consists of a random vibration applied in each of three mutually perpendicular axes for a duration of 15 minutes per axis. The PSD levels for the test simulating the shipping and relocation environment is shown below. Hz G2/Hz 2.5 0.001 5 0.03 40 0.018 500 0.018 Note: Overall RMS (root mean square) level of vibration is 3.01 G rms. Figure 30. Random Vibration PSD Profile Breakpoints (nonoperating) 6.6.2.2 Swept sine vibration ! 5 G (zero-to-peak), 10 to 500 to 10 Hz sine wave ! 0.5 oct/min sweep rate ! 25.4 mm (peak-to-peak) displacement, 5 to 10 to 5 Hz 6.6.3 Operating shock The hard disk drive meets the criteria in the table below while operating under these conditions: ! The shock test consists of 10 shock inputs in each axis and direction for a total of 60. ! There must be a minimum of 3 seconds delay between shock pulses. ! The disk drive will operate without a hard error while being subjected to the following half-sine shock pulse. Model 60-GB model all other models Duration of 2 ms 150 G 200 G Duration of 11 ms 15 G 15 G Figure 31. Operating shock The input level shall be applied to the normal disk drive subsystem mounting points used to secure the drive in a normal system. Hitachi Travelstar 60GH & 40GN hard disk drive specifications 35

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6.6.2 Nonoperating vibration
The disk drive withstands the following vibration levels without any loss or permanent damage.
6.6.2.1 Random vibration
The test consists of a random vibration applied in each of three mutually perpendicular axes for a duration
of 15 minutes per axis. The PSD levels for the test simulating the shipping and relocation environment is
shown below.
0.018
500
0.018
40
0.03
5
0.001
2.5
G
2
/Hz
Hz
Note: Overall RMS (root mean square) level of vibration is 3.01 G rms.
Figure 30. Random Vibration PSD Profile Breakpoints (nonoperating)
6.6.2.2 Swept sine vibration
!
5 G (zero-to-peak), 10 to 500 to 10 Hz sine wave
!
0.5 oct/min sweep rate
!
25.4 mm (peak-to-peak) displacement, 5 to 10 to 5 Hz
6.6.3 Operating shock
The hard disk drive meets the criteria in the table below while operating under these conditions:
!
The shock test consists of 10 shock inputs in each axis and direction for a total of 60.
!
There must be a minimum of 3 seconds delay between shock pulses.
!
The disk drive will operate without a hard error while being subjected to the following half-sine shock
pulse.
15 G
200 G
all other models
15 G
150 G
60-GB model
Duration of 11 ms
Duration of 2 ms
Model
Figure 31. Operating shock
The input level shall be applied to the normal disk drive subsystem mounting points used to secure the
drive in a normal system.
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
35