Seagate ST9450205SS, ST9900605SS, ST9900805SS manual 450GB standard model DC power requirements

Table 4:	450GB standard model DC power requirements
				3.0Gb mode		6.0Gb mode
			Notes	(Amps)	(Amps)	(Amps)	(Amps)
Voltage				+5V	+12V [2]	+5V	+12V [2]
Regulation			[6]	±5%	±5% [2]	±5%	±5% [2]
Avg idle current DC			[1] [8]	0.34	0.17	0.34	0.17
Advanced Idle Current
Idle_A		3σ		0.37	0.18	0.37	0.18
Idle_B		3σ		0.25	0.17	0.25	0.16
Idle_C		3σ		0.24	0.09	0.24	0.09
Standby		3σ		0.25	0.06	0.24	0.06
Transition Current
Idle_A		3σ		0.76	1.51	0.81	1.54
Idle_B		3σ		0.87	1.57	0.91	1.57
Idle_C		3σ		0.87	1.56	0.96	1.57
Standby		3σ		0.94	1.64	1.02	1.58
Maximum starting current
(peak DC) DC		3σ	[4]	0.57	0.88	0.57	0.87
(peak AC) AC		3σ	[4]	1.00	1.60	0.90	1.59
Delayed motor start (max) DC		3σ	[1] [5]	0.43	0.08	0.43	0.08
Peak operating current (random read):
Typical DC			[1] [7]	0.48	0.46	0.48	0.46
Maximum DC		3σ	[1]	0.50	0.50	0.52	0.49
Maximum (peak) DC		3σ		1.29	1.50	1.34	1.52
Peak operating current (random write)
Typical DC			[1]	0.55	0.35	0.56	0.35
Maximum DC		3σ	[1]	0.59	0.42	0.60	0.41
Maximum (peak) DC		3σ		1.11	1.50	1.08	1.51
Peak operating current (sequential read)
Typical DC			[1]	0.83	0.20	0.84	0.20
Maximum DC		3σ	[1]	0.90	0.20	0.91	0.20
Maximum (peak) DC		3σ		1.14	0.30	1.21	0.31
Peak operating current (sequential write)
Typical DC			[1]	0.90	0.20	0.90	0.20
Maximum DC		3σ	[1]	0.95	0.21	0.95	0.20
Maximum (peak) DC		3σ		1.20	0.33	1.16	0.30

24 Savvio 10K.5 SAS Product Manual, Rev. D