Physical/Electrical Specifications; Ac Power Requirements; Dc Power Requirements - Seagate ST3146855LC - Cheetah 146.8 GB Hard Drive Product Manual

6.0

Physical/electrical specifications

This section provides information relating to the physical and electrical characteristics of the Cheetah 15K.5
SCSI drive.
6.1

AC power requirements

None.
6.2

DC power requirements

The voltage and current requirements for a single drive are shown in the following table. Values indicated apply
at the drive power connector. The tables show current values in Amperes.
Table 3: ST3300655LC DC power requirements
Voltage
Regulation
Average idle current DC
Maximum starting current
(peak DC) DC
(peak AC) AC
Delayed motor start (max) DC
Peak operating current
DC
Maximum DC
Maximum (peak) DC
Cheetah 15K.5 SCSI Product Manual, Rev. H
Notes
+5 V
[5] ±5%
X [1][6] 0.70
[3] 0.76
3σ
[3] 1.07
3σ
[1] [4] 0.57
3σ
X [1] 0.69
[1] 0.70
3σ
1.38
3σ
LVD mode
+12 V
±5% [2]
0.80
1.94
3.35
0.03
1.18
1.23
2.90
23