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C141-E034-02EN1 - 6
(3) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Table 1.3 Current and power dissipation
Typical RMS current (*1)
+12 V +5 V
Model MPA
3017AT
MPA
3026AT
MPA
3035AT
MPA
3043AT
MPA
3052AT
All Models MPA
3017AT
MPA
3026AT
MPA
3035AT
MPA
3043AT
MPA
3052AT
Spin up 1.3 A
1.5 A peak
0.520 A
0.6 A peak
18.2 watts
Idle (Ready) (*3) 0.120 A 0.155 A 0.185 A 0.443 A 3.66 watts 4.08 watts 4.44 watts
R/W (On Track)
(*4)
0.130 A 0.160 A 0.190 A 0.620 A 4.66 watts 5.02 watts 5.38 watts
Seek (Random)
(*5)
0.370 A 0.380 A 0.425 A 0.520 A 7.04 watts 7.16 watts 7.70 watts
Standby 0.01 A 0.400 A 2.12 watts
Sleep 0.01 A 0.350 A 1.87 watts
*1 Current is typical rms except for spin up.
*2 Power requirements reflect nominal values for +12V and +5V power.
*3 Idle mode is in effect when the drive is not reading, writing, seeking, or executing any
commands.
*4 R/W mode is defined as 50% read operations and 50% write operations on a single physical
track.
*5 Seek mode is defined as continuous random seek operations with minimum controller delay.
Typical Power (*2)
Mode of
Operation