Seagate BarraCuda Product Manual, Rev. D
13
Drive Specifications
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to
operational levels.
†5W IDLE with DIPLM Enabled
2.8.2 Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt
line or an equivalent 15-ohm resistive load on the +5 volt line.
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected
noise at up to 10MHz.
• Using 5-volt power, the drive is expected to operate with a maximum of
100 mV peak-to-peak square-wave injected
noise at up to 10MHz.
Table 2
DC power requirements (3-disk: 3TB and 2TB models)
Power dissipation (3-disk values shown)
Avg (watts 25° C)
Avg 5V typ amps
Avg 12V amps
Spinup
—
—
2.0A or 2.5A
Idle2* †
5.40
0.190
0.377
Operating
8.00
0.510
0.462
Standby
0.75
0.136
0.005
Sleep
0.75
0.136
0.005
Table 3
DC power requirements (1-disk: 1TB and 500GB models)
Power dissipation (1-disk values shown)
Avg (watts 25° C)
Avg 5V typ amps
Avg 12V typ amps
Spinup
—
—
2.0
Perf Idle* †
4.6
0.378
0.224
Operating
5.3
0.656
0.243
Standby
0.94
0.350
0.010
Sleep
0.94
0.350
0.010
Note
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.
