Hitachi HUS157373EL3800, HUS157336EL3600, HUS157373EL3600 specifications 1 Vibration test direction

Note 1. Storage capacity does not include spare sector and spare cylinder.

Note 2. This is the value in the case that the drive is formatted to 512 Bytes/sector. (1 gigabyte shows 1x109 bytes on this document.)

Note 3. Ultrastar 15K73 is formatted to 512 Bytes/sector as the default.

If non-512 Bytes/sector is required, customer can change it by re-format of the drive.

Note 4. Data transfer rate is degraded with cable or host condition or electrical noise. Note 5. These specifications are typical under the following conditions:

1.Voltage is 5.0V/12.0V as measured on the edge of drive connector.

2.Surface temperature of HDA is 40°C.

If SCSI commands are issued during start-up (like TEST UNIT READY or REQUEST SENSE) in less than 10 ms intervals, then the start-up time may be extended.

Note 6. The disk drive orientation for vibration test is shown below.

Figure 3.1 Vibration test direction

Test conditions on vibration test are as follows.

(1) Operating

Acceleration frequency : 5 to 400 Hz,

Acceleration level : 9.8m/s2(1.0G)

Sweep rate : 0.5 octave / minute

Test cycle : 1 turn

(2) Non-operating

Acceleration frequency: 5 to 22 Hz, Maximum displacement: 2.56mm

Acceleration frequency: 22 to 400 Hz, Acceleration level: 49m/s2(5.0G)

Sweep rate: 0.5 octave / minute

Test cycle: 1 turn

Drawing No. Sheet No. Revision 5
K6602906	12/46	2003/6/12