Seagate BarraCuda Pro Serial ATA Product Manual, Rev. A
12
www.seagate.com
Drive specifications
1.2.5
Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector.
.
1.2.5.1
Power consumption
Power requirements for the drives are listed in
. 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 6 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
0.200
0.127
2.52
Standby
0.193
0.017
1.17
Sleep
0.226
0.018
1.35
Maximum Start Current
DC (peak DC)
1.078
1.672
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
7.33
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
6.28
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
8.49
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
7.67
Maximum DC (peak)
0.89
1.824
