User Manual

Seagate Enterprise Capacity 3.5 HDD v5 SAS Product Manual, Rev. F 26
6.2 AC power requirements
None.
6.3 DC power requirements
The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector.
The standard drive models and the SED drive models have identical hardware, however the security and encryption portion of the drive controller
ASIC is enabled and functional in the SED models. This represents a small additional drain on the 5V supply of about 30mA and a commensurate
increase of about 150mW in power consumption. There is no additional drain on the 12V supply.
Table 3 6TB drive DC power requirements
Notes
6.0Gb mode 12.0Gb mode
(Amps) (Amps) (Watts) (Amps) (Amps) (Watts)
Voltage +5V +12V [2] +5V +12V [2]
Regulation [5] ± 5% [2] ± 5% [2]
Avg idle current DCX [1] [7] 0.29 0.58 8.37 0.406 0.446 7.38
Advanced idle current
Idle A 0.29 0.58 8.37 0.399 0.445 7.33
Idle B 0.29 0.51 7.54 0.325 0.391 6.31
Idle C 0.30 0.29 4.95 0.334 0.234 4.48
Standby 0.28 0.01 1.46 0.315 0.005 1.63
Maximum starting current
(peak DC) DC
[3]
0.60 2.04 27.48 0.722 2.003 27.65
(peak AC) AC
[3]
0.78 2.77 1.056 2.680
Delayed motor start (max) DC
[1] [4]
0.28 0.11 0.428 0.064
Operating current (random read 4K16Q)
Typical DCX [1] [6] 0.40 0.84 12.09 0.442 0.790 11.69
Maximum DC [1] 0.42 0.88 0.450 0.802
Maximum (peak) DC 1.28 2.52 1.120 2.356
Operating current (random write 4K16Q)
Typical DCX
[1]
0.40 0.72 10.66 0.477 0.506 8.45
Maximum DC
[1]
0.42 0.75 0.482 0.515
Maximum (peak) DC 1.27 2.53 0.835 2.358
Operating current (sequential read 64K16Q)
Typical DCX
[1]
0.71 0.62 11.01 0.744 0.487 9.56
Maximum DC
[1]
0.74 0.65 0.748 0.492
Maximum (peak) DC 0.96 3.02 1.074 1.824
Operating current (sequential write 64K16Q)
Typical DCX
[1]
0.61 0.65 10.78 0.669 0.512 9.49
Maximum DC
[1]
0.64 0.67 0.674 0.518
Maximum (peak) DC 0.82 2.19 0.906 0.913