Vibration And Shock; Table 16. Random Vibration Psd Profile Breakpoints (Operating); Table 17. Swept Sine Vibration; Table 18. Random Vibration Psd Profile Breakpoints (Nonoperating) - Hitachi HTS541616J9AT00 - Travelstar 160 GB Hard Drive Specifications

6.5

Vibration and shock

All vibration and shock measurements in this section are for drives without mounting attachments for systems. The
input level shall be applied to the normal drive mounting points.
Vibration tests and shock tests are to be conducted by mounting the drive to a table using the bottom four mounting
holes.
6.5.1 Operating vibration
The drive will operate without a hard error while being subjected to the following vibration levels.
6.5.2 Random vibration
The test consists of 30 minutes of random vibration using the power spectral density (PSD) levels below. The
vibration test level is 6.57 m/sec2 RMS (Root Mean Square) (0.67 G RMS).
Random vibration PSD profile Breakpoint
Hz
5
17
45
48
62
65
150
200
500

Table 16. Random vibration PSD profile breakpoints (operating)

6.5.3 Swept sine vibration
Swept sine vibration
(zero to peak 5 to 500 to 5 Hz sine wave)
9.8 m/ sec2 (1 G) (5-500 Hz)

Table 17. Swept sine vibration

6.5.4 Nonoperating vibration
The disk drive withstands the following vibration levels without any loss or permanent damage.
6.5.5 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
2.5
5
40
500

Table 18. Random Vibration PSD Profile Breakpoints (nonoperating)

Note: Overall RMS level of vibration is 29.50 m/sec2 (3.01 G).
Travelstar 5K160 (PATA) Hard Disk Drive Specification
2 4
m x 10n (m /sec )/Hz
1.9 x E–3
1.1 x E–1
1.1 x E–1
7.7 x E–1
7.7 x E–1
9.6 x E–1
9.6 x E–1
4.8 x E–2
4.8 x E–2
Sweep rate (oct/min)
1.0
2
(m/sec )/Hz
0.096
2.88
1.73
1.73
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