Fujitsu MHW2040AC User Manual download pdf (Page 31)

1.3 Power Requirements

(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)

1.2 A 6.0 W

Idle

140 mA 0.70 W

R/W (on track) (*2)

360 mA 1.8 W

Seek (*5)

420 mA 2.1 W

Standby

40 mA 0.20 W

Sleep

20 mA 0.1 W

Energy

Efficiency (*4)

—

d rank (0.0117 W/GB): MHW2060AC

d rank (0.0175 W/GB): MHW2040AC

*1 Maximum current 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.

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Fujitsu MHW2040AC User Manual Page 31