Seagate Exos X20 SATA Product Manual, Rev. B
12
www.seagate.com
Drive specifications
2.5
Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector.
.
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 35°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 (20TB and 18TB models)
6.0Gb mode
Voltage
+5V
+12V
Watts
Regulation
± 5%
± 10%
Total
Avg Idle Current *
0.298
0.340
5.570
Advanced Idle Current *
Idle_A
0.297
0.344
5.613
Idle_B
0.252
0.191
3.552
Idle_C
0.246
0.128
2.766
Standby
0.157
0.010
0.905
Maximum Start Current
DC (peak DC)
0.932
2.197
AC (Peak DC)
1.100
3.120
Delayed motor start (max) DC
0.519
0.088
Operating current (random read 4K16Q):
Typical DC
0.381
0.616
9.297
Maximum DC
0.390
0.627
Maximum DC (peak)
1.146
2.432
Operating current (random write 4K16Q)
Typical DC
0.405
0.365
6.405
Maximum DC
0.413
0.377
Maximum DC (peak)
1.085
2.461
Operating current (sequential read 64K16Q)
Typical DC
0.839
0.326
8.107
Maximum DC
0.857
0.340
Maximum DC (peak)
1.140
2.402
Operating current (sequential write 64K16Q)
Typical DC
0.858
0.325
8.190
Maximum DC
0.877
0.338
Maximum DC (peak)
1.113
0.678
