Seagate Power Requirements for 2TB Drives - Model ST1000NM0053

Table 3 2TB Drive DC power requirements

				3.0Gb mode			6.0Gb mode
Voltage			+5V		+12V	+5V		+12V
Regulation			±5%		±5%	±5%		±5%
Avg Idle Current *			0.24		0.41	0.24		0.42
Advanced Idle Current *
	Idle_A		0.24		0.41	0.24		0.42
	Idle_B		0.14		0.36	0.15		0.37
	Idle_C		0.14		0.20	0.15		0.20
	Standby		0.13		0.02	0.14		0.02
Transition Current *
	Idle_A (Active)		0.54		1.76	0.54		1.72
	Idle_B (Active)		0.60		1.61	0.62		1.57
	Idle_C (Active)		0.62		2.39	0.64		2.37
	Standby (Active)		0.68		2.72	0.66		2.73
Average Sleep Current			0.13		0.02	0.14		0.02
Maximum Start Current
	DC (peak DC)	3σ	0.53		2.10	0.53		2.10
	AC (Peak DC)	3σ	0.69		2.78	0.90		2.77
Delayed Motor Start (DC max)		3σ	0.14		0.02	0.14		0.02
Peak operating current (random read):
	Typical DC		0.29		0.61	0.30		0.62
	Maximum DC	3σ	0.30		0.63	0.31		0.65
	Maximum DC(peak)	3σ	1.09		1.65	1.10		1.64
Peak operating current (random write)
	Typical DC		0.39		0.53	0.39		0.53
	Maximum DC	3σ	0.40		0.54	0.40		0.54
	Maximum DC(peak)	3σ	1.16		1.66	1.127		1.65
Peak operating current (sequential read)
	Typical DC		0.62		0.42	0.62		0.43
	Maximum DC	3σ	0.64		0.44	0.64		0.44
	Maximum DC(peak)	3σ	0.94		0.64	0.96		0.66
Peak operating current (sequential write)
	Typical DC		0.78		0.42	0.78		0.43
	Maximum DC	3σ	0.83		0.44	0.82		0.44
	Maximum DC(peak)	3σ	1.18		0.67	1.24		0.642

CONSTELLATION ES SERIAL ATA PRODUCT MANUAL, REV. F 8