10 SV35 Series SATA Product Manual, Rev. D
2.8 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 20.
2.8.1 Power consumption and DC power requirements
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an
average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient tempera-
ture.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating
speed.
• Idle mode power
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a
random track location.
• Operating
Operating power is measured by simulating a typical PVR operating environment, using a 50% write 50% read
algorithm.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/write
electronics are in power-down mode.
*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
Table 4: DC power requirements (3-disk, 2TB)
Power dissipation (4-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0 (peak)
Idle*† 5.0 0.168 0.337
Idle*† (with offline activity) 5.40 0.153 0.387
Operating 5.8 0.496 0.341
Standby 0.5 0.35 0.01
Sleep 0.5 0.35 0.01
Table 5: DC power requirements (1 and 2-disk, 1TB and 500GB)
Power dissipation (3-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0 (peak)
Idle*† 5.0 0.168 0.337
Idle*† (with offline activity) 5.40 0.153 0.387
Operating 7.0 0.496 0.341
Standby 1.0 0.35 0.01
Sleep 1.0 0.35 0.01