Seagate ST9450304SS, ST9600204SS, ST9600104SS, ST9450404SS Savvio 10K.4 SAS Product Manual, Rev. a

Table 2:	600GB standard drive DC power requirements
				600GB standard model		600 GB standard model
				3.0Gb mode		6.0Gb mode
			Notes	(Amps)	(Amps)	(Amps)	(Amps)
Voltage				+5V	+12V [2]	+5V	+12V [2]
Regulation			[5]	±5%	±5% [2]	±5%	±5% [2]
Avg idle current DC			[1] [7]	0.33	0.24	0.34	0.24
Advanced Idle Current
Idle_A		3σ		0.32	0.24	0.33	0.24
Idle_B		3σ		0.23	0.21	0.24	0.21
Idle_C		3σ		0.23	0.11	0.24	0.10
Standby		3σ		0.23	0.06	0.24	0.05
Transition Current
Idle_A - Active		3σ		0.72	1.58	0.70	1.42
Idle_B - Active		3σ		0.68	1.53	0.66	1.51
Idle_C - Active		3σ		0.64	1.53	0.66	1.51
Standby - Active		3σ		0.64	1.61	0.68	1.61
Maximum starting current
(peak DC) DC		3σ	[3]	0.51	0.87	0.53	0.87
(peak AC) AC		3σ	[3]	0.75	1.63	0.86	1.65
Delayed motor start (max) DC		3σ	[1] [4]	0.46	0.07	0.47	0.07
Peak operating current (random read):
Typical DC			[1] [6]	0.43	0.51	0.44	0.51
Maximum DC		3σ	[1]	0.44	0.52	0.46	0.52
Maximum (peak) DC		3σ		1.06	1.54	1.10	1.52
Peak operatig current (random write)
Typical DC				0.48	0.42	0.50	0.42
Maximum DC		3σ		0.49	0.44	0.50	0.44
Maximum (peak) DC		3σ		1.02	1.54	1.04	1.56
Peak operating current (sequential read)
Typical DC				0.82	0.26	0.84	0.27
Maximum DC		3σ		0.86	0.27	0.88	0.27
Maximum (peak) DC		3σ		1.12	0.42	1.16	0.42
Peak operating current (sequential write)
Typical DC				0.80	0.25	0.81	0.25
Maximum DC		3σ		0.82	0.27	0.83	0.27
Maximum (peak) DC		3σ		1.02	0.66	1.04	0.76

22 Savvio 10K.4 SAS Product Manual, Rev. A