Acoustic Noise; Shock And Vibration; Table 1.5 Acoustic Noise Specification; Table 1.6 Shock And Vibration Specification - Fujitsu MJA2500BH - Mobile 500 GB Hard Drive Product/Maintenance Manual

1.5 Acoustic Noise

Table 1.5 lists the acoustic noise specification.
Item
• Idle mode (DRIVE READY)
Sound Power
Sound Pressure (at 0.3m)
Note:
Measure the noise from the cover top surface.

1.6 Shock and Vibration

Table 1.6 lists the shock and vibration specification.

Table 1.6 Shock and vibration specification

Item
Vibration (Swept sine, 1/4 octave per minute)
• Operating
Non-operating
Shock (half-sine pulse)
• Operating
• Non-operating
C141-E293

Table 1.5 Acoustic noise specification

Specification
2.0B [MJA2250BH/MJA2160BH/MJA2120BH/MJA2080BH]
2.4B [MJA2500BH/MJA2400BH/MJA2320BH]
22dB [MJA2250BH/MJA2160BH/MJA2120BH/MJA2080BH]
28dB [MJA2500BH/MJA2400BH/MJA2320BH]
Specification
5 to 500 Hz, 9.8m/s
(without non-recovered errors)
5 to 500 Hz, 49m/s
(no damage)
3430 m/s
2ms duration
(without non-recovered errors)
8820 m/s
1ms duration
1176 m/s
11ms duration
(no damage)
1.5 Acoustic Noise
2
0-peak (1G 0-peak)
2
0-peak (5G 0-peak)
2
0-peak (350G 0-peak)
2
0-peak (900G 0-peak)
2
0-peak (120G 0-peak)
1-11