FUJITSU MHT2060BH User Manual

Page 29

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1.3 Power Requirements

C141-E203-01EN 1-7

(4) 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)

MHT2080BH,

MHT2060BH,

MHT2040BH

MHT2080BH, MHT2060BH,

MHT2040BH

Spin up (*1)

1.0 A

5.0 W

Idle (*6)

170 mA

0.85 W

R/W (on track) (*2)

Read 460 mA / Write 460mA

Read 2.3 W / Write 2.3 W

Seek (*5)

500 mA

2.5 W

Standby (*6)

50 mA

0.25 W

Sleep (*6)

20 mA

0.1 W

Energy
Efficiency (*4)

— 0.011

W/GB

(rank E / MHT2080BH)

0.014 W/GB

(rank E / MHT2060BH)

0.021 W/GB

(rank D / MHT2040BH)

*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 nominal 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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