Seagate ST9450204SS Savvio 10K.2 SAS Product Manual - Page 31
Physical/electrical specifications
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6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 None. AC power requirements 6.2 DC power requirements The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector. Table 12: ST9146802SS DC power requirements Voltage Regulation Avg idle current DCX Maximum starting current (peak DC) DC (peak AC) AC Delayed motor start (max) DC Operating current: Typical DCX Maximum DC Maximum (peak) DC Notes [5] [1] [7] ST9146802SS 1.5 Gbit mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.79 0.15 ST9146802SS 3.0 Gbit mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.77 0.15 3σ [3] 0.87 1.59 0.85 1.59 3σ [3] 1.22 2.01 1.43 2.02 3σ [1] [4] 0.65 0.02 0.68 0.03 [1] [6] 0.76 0.37 0.79 0.39 3σ [1] 0.78 0.40 0.83 0.43 3σ 1.34 1.19 1.41 1.21 Gen 3.5 LPSS measured data (latest available) plus 12V max start current margins of .15A for DC and .20A for AC. All others have 10% margin added. Savvio 10K.2 SAS Product Manual, Rev. D 25