Non-Operating Shock; Half Sinewave Shock Pulse; Rotational Shock - Hitachi ULTRASTAR 15K450 HUS154530VLF400 Specifications

12.4 Non-operating shock

The drive will not sustain permanent damage or loss of recorded data after being subjected to the environments as described
below.

12.4.1 Half sinewave shock pulse

80 G, 11 ms duration, half sinewave pulse
250 G, 2 ms duration, half sinewave pulse
The shocks are applied in each direction of the drive for the three mutually perpendicular axes, one axis at a time. The input
level is applied to a base plate where the drive is attached using four mounting screws.

12.4.2 Rotational shock

2
30,000 radians /second , 1 ms duration
2
20,000 radians /second , 2 ms duration
The shock input is applied around the axis of the actuator pivot. The shock input does not displace the heads from the actuator
latched position.
October 29, 2008 2:44 pm
Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
42