Nonoperating Vibration; Operating Shock; Table 20: Random Vibration Psd Profile Breakpoints (Nonoperating); Table 21: Operating Shock - Hitachi IC25N040ATMR04-0 - Travelstar 40GB Laptop Hard Drive 9.5mm 2.5 Inch Notebook HDD Specifications

6.5.1.2 Swept sine vibration
Table 19: Swept sine vibration
Swept sine vibration
(zero to peak 5 to 500 to 5 Hz
sine wave)
2
9.8 m/sec (1 G) (5-500 Hz)

6.5.2 Nonoperating vibration

The disk drive withstands the vibration levels described below 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.

Table 20: Random Vibration PSD Profile Breakpoints (nonoperating)

Hz
2.5
5
40
500
Note: Overall RMS (root mean square) level of vibration is 3.01 G rms.
6.5.2.2 Swept sine vibration
2
• 49 m/sec (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 21: Operating shock

Duration of 2 ms
2
1960 m/sec (200 G)
Sweep rate (oct/min)
2.0
(m2/sec4)/Hz
0.096
2.88
1.73
1.73
Duration of 11 ms
2
147 m/sec (15 G)
Travelstar 80GN Hard Disk Drive Specification
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