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8 Pipeline HD Mini Series SATA Product Manual, Rev. E
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/write
electronics are in power-down model
Table 3: DC power
Power dissipation
+5V input average (25° C)
ST9500323CS and ST9320328CS ST9250311CS and ST91603110CS
Spinup (max) 1 amp
Seek 1.54 watts
IDEMA 3 Stream 1.7 watts 1.6 watts
Idle, performance* 1.5 watts
Idle, active* 0.90 watts 0.81 watts
Idle, low power mode* 0.72 watts 0.67 watts
Standby** 0.40 watts
Sleep 0.40 watts
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels.
**Standby power is measured at steady state (after 200ms from transition)
2.9.1.1 Typical current profile
Figure 1. Typical +5V only startup and operation current profile