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8 ST1.3 Series Product Manual, Rev. C
*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.
2.7.1.1 Typical current profile
Figure 4. Typical 3.3V startup and operation current profile
Table 2: DC power
ST1.3 Series Power Consumption (W)
Max current the average of the peak value in 10ms window
Average 3.3V (mA) Max 3.3V (mA)
Current 270 330
Spinup 180 300
Load/Unload current 190 200
Write 240 300
Read 230 300
Seek 154 161
Performance idle 140 147
Low power idle 77 86
Standby/Sleep 13 18