Seagate ST500NM0011, ST2000NM0031, ST1000NM0011, ST500NM0051 manual 500GB Drive DC power requirements

Table 5 500GB Drive DC power requirements

				3.0Gb mode			6.0Gb mode
Voltage			+5V		+12V	+5V		+12V
Regulation			±5%		±5%	±5%		±5%
Avg Idle Current *			0.37		0.21	0.38		0.21
Advanced Idle Current *
	Idle_A		0.37		0.21	0.38		0.21
	Idle_B		0.14		0.19	0.15		0.19
	Idle_C		0.14		0.12	0.15		0.12
	Standby		0.13		0.01	0.14		0.02
Transition Current *
	Idle_A (Active)		0.78		1.48	0.78		1.42
	Idle_B (Active)		0.72		1.19	0.72		1.35
	Idle_C (Active)		0.72		2.01	0.72		2.03
	Standby (Active)		0.72		2.49	0.72		2.43
Average Sleep Current			0.13		0.01	0.14		0.02
Maximum Start Current
	DC (peak DC)	3σ	0.62		1.87	0.62		1.88
	AC (Peak DC)	3σ	0.76		2.56	0.80		2.65
Delayed Motor Start (DC max)		3σ	0.14		0.02	0.15		0.02
Peak operating current (random read):
	Typical DC		0.32		0.40	0.32		0.40
	Maximum DC	3σ	0.32		0.48	0.32		0.47
	Maximum DC(peak)	3σ	1.03		1.48	01.06		1.450
Peak operating current (random write)
	Typical DC		0.40		0.30	0.41		0.30
	Maximum DC	3σ	0.41		0.33	0.42		0.33
	Maximum DC(peak)	3σ	1.16		1.44	1.16		1.44
Peak operating current (sequential read)
	Typical DC		0.61		0.20	0.62		0.20
	Maximum DC	3σ	0.63		0.22	0.64		0.22
	Maximum DC(peak)	3σ	0.91		0.43	0.97		0.45
Peak operating current (sequential write)
	Typical DC		0.79		0.20	0.79		0.20
	Maximum DC	3σ	0.83		0.22	0.84		0.22
	Maximum DC(peak)	3σ	1.15		0.40	1.15		0.44

*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 ES SERIAL ATA PRODUCT MANUAL, REV. F 10