Seagate Enterprise Capacity 2.5 HDD v3 SATA Product Manual, Rev. E
11
2.5
Power specifications
The drive receives DC power (+5V and +12V) through a native SATA power connector. See Figure 4 on page 25.
2.5.1
Power consumption
Power requirements for the drives are listed in Table 2 and 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.
Operation at 3 Gb mode reduces the +5V supply load by 3mA with a commensurate power reduction of 15mW.
*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
.
Note
There is no measurable impact to the 12V supply load when running at lower interface speeds.
Table 2
2TB standard drive DC power requirements
6.0Gb mode
(Amps)
(Amps)
(Watts)
Voltage
+5V
+12V
Total
Regulation
± 5%
± 5%
Avg idle current DC *
0.44
0.16
4.12
Advanced Idle Current *
Idle_A
0.44
0.16
4.12
Idle_B
0.22
0.10
2.30
Idle_C
0.21
0.07
1.89
Standby
0.18
0.02
1.14
Maximum starting current
(peak DC) DC
0.50
0.70
(peak AC) AC
0.79
0.97
Delayed motor start (max) DC
0.19
0.03
1.31
Operating current (random read):
Typical DC
0.30
0.31
5.22
Maximum DC
0.38
0.34
5.98
Maximum (peak) DC
1.12
0.89
Operating current (random write)
Typical DC
0.30
0.30
5.10
Maximum DC
0.36
0.34
5.88
Maximum (peak) DC
1.12
0.92
Operating current (sequential read)
Typical DC
0.48
0.17
4.44
Maximum DC
0.55
0.19
5.03
Maximum (peak) DC
0.70
0.33
Operating current (sequential write)
Typical DC
0.44
0.20
4.60
Maximum DC
0.49
0.22
5.09
Maximum (peak) DC
0.60
0.33
