Seagate ST31250N/ND, ST31250W/WD/WC/DC, ST32550W/WD/WC/DC, ST32550N/ND manual Amps

16	Barracuda 2LP Installation Guide, Rev. E
DC power requirements
		Single-ended		Differential
		+5V11	+12V	+5V11	+12V
Voltage regulation5		± 5%	± 5%2	± 5%	± 5%2
Maximum operating current1			Amps
		0.93	0.6	1.17	0.6
Maximum starting current
	Peak DC3, 6	0.93	1.35	1.00	1.35
	Peak AC3	−	1.93	−	1.93
Delayed motor start (max)1,4		0.88	0.12	0.92	0.12
Peak operating current
	Typ DC1, 10	0.91	0.57	1.13	0.57
	Max DC1	0.93	0.60	1.17	0.60
	Max (peak)	1.00	1.56	1.95	1.56
Track following (DC)
	at OD1	0.91	0.5	0.99	0.50
	at ID1	0.88	0.51	0.96	0.51
Read track
	OD DC1, 14	0.96	0.53	1.35	0.53
	AC	1.03	0.73	1.95	0.73
Seeking
	Typical DC1, 13	0.89	0.78	0.99	0.78
	Maximum DC1	0.92	0.82	1.10	0.82
	Maximum (peak) AC	0.95	1.60	1.67	1.60