5K250 SATA OEM Specification
Page 34 of 171
6.5.2
Nonoperating vibration
The disk drive withstands the following vibration levels without any loss or permanent damage.
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.
Hz
(m/sec
2
)/Hz
2.5 0.096
5 2.88
40 1.73
500 1.73
Table 19. Random Vibration PSD Profile Breakpoints (nonoperating)
Note: Overall RMS 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), 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
6.5.3
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.
Duration of 1 ms
Duration of 2 ms
1960 m/sec
2
(200 G)
3920 m/sec
2
(400 G)
Table 20. 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.
6.5.4
Nonoperating shock
The drive withstands the following half-sine shock pulse without any data loss or permanent damage.
Duration of 1 ms
Duration of 11 ms
9800 m/sec
2
(1000 G)
1470 m/sec
2
(150 G)
Table 21. Nonoperating shock
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.
