FUJITSU MHW2060AC User Manual

Page 31

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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.

C141-E258

1-9

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