Product manual

Table 5 1TB Drive DC power requirements
Notes 6.0Gb mode
Voltage +5V +12V
Regulation ± 5%
Avg Idle Current * 0.30 0.53
Advanced Idle Current *
Idle_A 0.17 0.30
Idle_B 0.16 0.27
Idle_C 0.16 0.18
Standby 0.15 0.01
Maximum Start Current
DC (peak DC) 3 0.60 2.12
AC (Peak DC) 3 1.57 2.89
Delayed Motor Start (DC max) 3 0.16 0.01
Peak operating current (random read):
Typical DC 0.32 0.54
Maximum DC 3 0.34 0.57
Maximum DC (peak) 3 1.23 2.10
Peak operating current (random write)
Typical DC 0.32 0.55
Maximum DC 3 0.33 0.56
Maximum DC (peak) 3 0.69 2.08
Peak operating current (sequential read)
Typical DC 0.63 0.33
Maximum DC 3 0.67 0.34
Maximum DC (peak) 3 0.92 1.90
Peak operating current (sequential write)
Typical DC 0.56 0.38
Maximum DC 3 0.58 0.38
Maximum DC (peak) 3 0.92 1.70
Constellation ES.3 Serial ATA Product Manual, Rev. E 12
*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.