Hitachi HTS541040G9AT00 Specifications - Page 48

Operating shock, Nonoperating shock - travelstar 60

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6.5.2.1 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. Table 21: Random Vibration PSD Profile Breakpoints (nonoperating) Hz (m2/sec4)/Hz 2.5 0.096 5 2.88 40 1.73 500 1.73 Note: Overall RMS (root mean square) level of vibration is 29.50 m/sec2 (3.01 G). 6.5.2.2 Swept sine vibration • 49 m/sec2 (5 G) (zero-to-peak), 5 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 6.5.3 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 delay of 3 seconds between shock pulses. • The disk drive will operate without a hard error while subjected to the following half-sine shock pulse Table 22: Operating shock Duration of 1 ms 1568 m/sec2 (160 G) Duration of 2 ms 2940 m/sec2 (300 G) Duration of 11 ms 147 m/sec2 (15 G) The input level shall be applied to the normal disk drive subsystem mounting points used to secure the drive in a normal system. 6.5.4 Nonoperating shock The drive withstands the following half-sine shock pulse without any data loss or permanent damage. Table 23: Nonoperating shock Duration of 1 ms 9800 m/sec2 (1000 G) Duration of 11 ms 1470 m/sec2 (150 G) The shocks are applied for each direction of the drive for three mutually perpendicular axes, one axis at a time. Input levels are measured on a base plate where the drive is attached with four screws Travelstar 5K100 Hard Disk Drive Specification 34

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Travelstar 5K100 Hard Disk Drive Specification
34
6.5.2.1
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.
Note:
Overall RMS (root mean square) level of vibration is 29.50 m/sec
2
(3.01 G).
6.5.2.2
Swept sine vibration
49 m/sec
2
(5 G) (zero-to-peak), 5 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
6.5.3
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 delay of 3 seconds between shock pulses.
The disk drive will operate without a hard error while subjected to the following half-sine shock pulse
The input level shall be applied to the normal disk drive subsystem mounting points used to secure the drive in a
normal system.
6.5.4
Nonoperating shock
The drive withstands the following half-sine shock pulse without any data loss or permanent damage.
The shocks are applied for each direction of the drive for three mutually perpendicular axes, one axis at a time.
Input levels are measured on a base plate where the drive is attached with four screws
Table 21: Random Vibration PSD Profile Breakpoints (nonoperating)
Hz
(m2/sec4)/Hz
2.5
0.096
5
2.88
40
1.73
500
1.73
Table 22: Operating shock
Duration of 1 ms
Duration of 2 ms
Duration of 11 ms
1568 m/sec
2
(160 G)
2940 m/sec
2
(300 G)
147 m/sec
2
(15 G)
Table 23: Nonoperating shock
Duration of 1 ms
Duration of 11 ms
9800 m/sec
2
(1000 G)
1470 m/sec
2
(150 G)