FUJITSU MHW2120BS - Manual (Page 30)

Device Overview
(5) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation (typical).
Table 1.3 Current and power dissipation
Typical RMS Current Typical Power (*3)
Spin up (*1) 1.0 A 5.0 W
Idle (*6) 120 mA 0.60 W
R/W (on track) (*2) 380 mA 1.9 W
Seek (*5) 420 mA 2.1 W
Standby (*6) 26 mA 0.13 W
Sleep (*6) 26 mA 0.13 W
Energy
Efficiency (*4)
—
0.0050 W/GB (rank E / MHW2120BS)
0.0060 W/GB (rank E / MHW2100BS)
0.0075 W/GB (rank E / MHW2080BS)
0.0100 W/GB (rank D / MHW2060BS)
0.0150 W/GB (rank D / MHW2040BS)
*1 Maximum current and power at starting spindle motor.
*2 Current and power level when the operation (command) that accompanies a
transfer of 63 sectors is executed 3 times in 100 ms
*3 Power requirements reflect typical values for +5 V power.
*4 Energy efficiency based on the Law concerning the Rational Use of Energy
indicates the value obtained by dividing power consumption by the storage
capacity. (Japan only)
*5 The seek average current is specified based on three operations per 100
msec.
*6 IPM mode: Slumber mode.
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