Cheetah 15K.7 SAS Product Manual, Rev. A
Table 13: 600 GB DC power requirements
Notes
ST3600057SS
ST3600957SS
3 Gbit mode
ST3600057SS
ST3600957SS
6 Gbit mode
(Amps) (Amps) (Amps) (Amps)
Voltage +5V +12V [2] +5V +12V [2]
Regulation [5] ±5% ±5% [2] ±5% ±5% [2]
Avg idle current [1] [7] 0.37 0.81 0.38 0.81
Maximum starting current
(peak DC) DC 3σ [3] 0.67 1.90 0.68 1.91
(peak AC) AC 3σ [3] 0.98 3.82 0.98 3.88
Delayed motor start (max) DC 3σ [1] [4] 0.55 0.04 0.56 0.04
Peak operating current (random read):
Typical DC [1][6] [1] 0.44 1.15 0.45 1.17
Maximum DC 3σ [1] 0.49 1.20 0.51 1.21
Maximum DC (peak) 3σ 1.32 3.00 1.34 3.00
Peak operating current (random write):
Typical DC [1][6] [1] 0.51 1.03 0.53 1.04
Maximum DC 3σ [1] 0.56 1.05 0.58 1.07
Maximum DC (peak) 3σ 1.26 2.94 1.28 2.92
Peak operating current (sequential read):
Typical DC [1][6] [1] 0.98 0.83 0.99 0.84
Maximum DC 3σ [1] 1.08 0.84 1.10 0.85
Maximum DC (peak) 3σ 1.40 1.26 1.46 1.24
Peak operating current (sequential write):
Typical DC [1][6] [1] 0.93 0.83 0.94 0.83
Maximum DC 3σ [1] 1.00 0.84 1.02 0.85
Maximum DC (peak) 3σ 1.30 1.24 1.30 1.26
