Seagate ST3146855FC, ST3300655FC manual Physical/electrical specifications, AC power requirements

6.0Physical/electrical specifications

This section provides information relating to the physical and electrical characteristics of the drive.

6.1AC power requirements

None.

6.2DC power requirements

The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector. Notes are shown following table 4.

Table 2: DC power requirements for ST3300655FC model

			1 Gbit		2 Gbit		4 Gbit
		Notes	(Amps)	(Amps)	(Amps)	(Amps)	(Amps)	(Amps)
Voltage			+5V	+12V [2]	+5V	+12V [2]	+5V	+12V [2]
Regulation		[5]	±5%	±5% [2]	±5%	±5% [2]	±5%	±5% [2]
		[1] [7]	0.76	0.76	0.83	0.81	0.86	0.75
Avg idle current DCX
Maximum starting current
(peak DC) DC	3σ	[3]	0.80	1.94	0.84	1.94	0.89	1.94
(peak AC) AC	3σ	[3]	1.22	3.41	1.30	3.48	1.34	3.44
Delayed motor start (max) DC	3σ	[1] [4]	0.45	0.03	0.49	0.03	0.53	0.03
Peak operating current:
		[1] [6]	0.69	1.13	0.72	1.12	0.78	1.16
Typical DCX
Maximum DC	3σ	[1]	0.69	1.17	0.73	1.17	0.79	1.21
Maximum (peak) DC	3σ		1.48	3.08	1.56	3.04	1.60	3.04

Cheetah 15K.5 FC Product Manual, Rev. D 23