Fujitsu MHT2040BH User Manual
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)
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.
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)
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.
100 msec.
*6 IPM mode: Slumber mode.