FUJITSU MHE2064AT - Manual (Page 28)

1.3 Power Requirements
C141-E057-01EN 1-7
(3) Current Requirements and Power Dissipation
Table 1.5 lists the current and power dissipation.
Table 1.5 Current and power dissipation
Typical RMS Current Typical Power (*3)
MHE Series MHF Series MHE Series MHF Series
Spin up (*1) 0.9 A 0.9 A 4.5 W 4.5 W
Idle 190 mA 190 mA 0.95 W 0.95 W
R/W (*2) 430 mA 430 mA 2.15 W 2.15 W
Standby 70 mA 70 mA 0.35 W 0.35 W
Sleep 26 mA 26 mA 0.13 W 0.13 W
Energy
Consumption
Efficiency (*4) — — 0.0001 W/MB 0.0004 W/MB
*1 Current at starting spindle motor.
*2 Power requirements reflect nominal values for +5V power.
*3 At 30% disk accessing.
*4 Energy Consumption Efficiency =
Idle power dissipation / Total record capacity (MB)
(4) Current fluctuation (Typ.) at +5V when power is turned on
Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on