Fujitsu MHU2100AT manual Current and power dissipation

1.3 Power Requirements

(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)
Spin up (*1)		0.9 A	4.5 W
Idle		130 mA	0.65 W
R/W (on track) (*2)		Read 400 mA / Write 420mA	Read 2.0 W / Write 2.1 W
Seek (*5)		460 mA	2.3 W
Standby		50 mA	0.25 W
Sleep		20 mA	0.1 W
Energy		—	0.007 W/GB
Efficiency (*4)			(rank E)
*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 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.

C141-E202-01EN 1-7