User Manual

Seagate SkyHawk Serial ATA Product Manual, Rev. B 10
www.seagate.com Drive specifications
1.2.5 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 2 on page 23 .
1.2.5.1 Power consumption
Power requirements for the drives are listed in Table 3. Typical power measurements are based on an average of
drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.
*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
Table 3 DC power requirements
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% ± 10% Total
Avg Idle Current * 0.297 0.299 5.07
Advanced Idle Current *
Idle_A 0.267 0.295 4.88
Idle_B 0.203 0.185 3.24
Idle_C 0.20 0.127 2.52
Standby 0.193 0.017 1.17
Maximum Start Current
DC (peak DC) 1.078 1.672 25.45
AC (Peak DC) 1.128 2.06
Delayed motor start (max) DC
Operating current (random read 4K16Q):
Typical DC 0.454 0.405 7.14
Maximum DC 0.472 0.415
Maximum DC (peak) 1.32 2.305
Operating current (random write 4K16Q)
Typical DC 0.317 0.385 6.20
Maximum DC 0.326 0.388
Maximum DC (peak) 0.791 1.425
Operating current (sequential read 64K16Q)
Typical DC 0.90 0.319 8.33
Maximum DC 0.919 0.324
Maximum DC (peak) 1.183 0.601
Operating current (sequential write 64K16Q)
Typical DC 0.752 0.319 7.59
Maximum DC 0.756 0.324
Maximum DC (peak) 0.89 1.824