Seagate ST91000641NS Constellation SATA Product Manual - Page 17
Parameter, Voltage, Power, Regulation, watts, ST9160511NS
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Parameter ST9160511NS (1.5GB) ST9160511NS (3.0GB) Voltage Regulation +5 V +/-5% +12 V +/-5% Power (watts) +5 V +/-5% +12 V +/-5% Power (w atts) Average Idle Current 0.23 0.08 2.11 0.24 0.08 2.14 Advanced Idle Current Idle_A Idle_B Idle_C Standby 0.23 0.08 2.08 0.24 0.08 2.10 0.14 0.06 1.46 0.15 0.06 1.49 0.14 0.04 1.25 0.15 0.04 1.27 0.16 0.02 1.02 0.17 0.02 1.04 Average Sleep Current 0.16 0.02 0.97 0.16 0.02 1.00 Maximum Start Current: DC (Peak DC) AC (Peak AC) 0.41 0.62 9.47 0.41 0.62 9.51 0.57 0.77 12.11 0.57 1.09 15.94 Delayed Motor Start (DC max) 0.16 0.02 1.01 0.17 0.02 1.04 Peak Operating Current (random read): Typical DC 0.31 0.11 2.88 0.31 0.11 2.92 Maximum DC Maximum DC (peak) 0.31 0.12 3.01 0.32 0.12 3.07 0.82 0.52 10.34 0.84 0.52 10.44 Peak Operating Current (random write): Typical DC Maximum DC Maximum DC (peak) 0.35 0.12 3.18 0.36 0.12 3.22 0.35 0.12 3.23 0.36 0.12 3.28 1.02 0.56 11.82 1.00 0.52 11.24 Peak operating current (sequential read): Typical DC Maximum DC Maximum DC (peak) 0.58 0.09 3.98 0.59 0.09 4.00 0.60 0.09 4.08 0.60 0.09 4.11 0.84 0.20 6.60 0.86 0.20 6.70 Peak operating current (sequential write): Typical DC Maximum DC Maximum DC (peak) 0.62 0.09 4.15 0.62 0.09 4.18 0.67 0.09 4.46 0.68 0.09 4.49 1.02 0.20 7.50 1.04 0.20 7.60 *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. Constellation Serial ATA Product Manual, Rev. D 11