Hitachi hard disk 0J11285 500 GB 2.5 " 8 MB 0J11285 Ficha De Dados

Z5K500 OEM Specifications 

31 

6.5 

Vibration and shock 

All vibration and shock measurements in this section are for hard disk drives without mounting 
attachments for systems. The input level shall be applied to the normal mounting points. 

Vibration tests and shock tests are to be conducted by mounting the hard disk drive to a table using the 
bottom or side four mounting holes. 

6.5.1 

Operating vibration 

The hard disk drive will operate without a hard error while being subjected to the following vibration levels. 

6.5.1.1 

Random vibration 

The test consists of 30 minutes of random vibration using the power spectral density (PSD) levels below.   
The vibration test level is 6.57m/sec

2

 RMS

 

(Root Mean Square) (0.67 G RMS). 

Random vibration PSD profile Breakpoint 

Hz 

)/Hz 

5 

1.9 x E–3 

17 

1.1 x E–1 

45 

1.1 x E–1 

48 

7.7 x E–1 

62 

7.7 x E–1 

65 

9.6 x E–2 

150 

9.6 x E–2 

200 

4.8 x E–2 

500 

4.8 x E–2 

Table 17 Random vibration

 

PSD profile breakpoints (operating)

 

6.5.1.2 

Swept sine vibration 

Swept sine vibration 
(zero to peak 5 to 500 to 5 Hz sine wave) 

(oct/min) 

9.8 m/sec

2

 (1 G) (5-500 Hz) 

1.0 

Table 18 Swept sine vibration