Table 40: Power Supply Current Of 80Gb And 40Gb Models; Power Supply Current (Typical) - Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications

7.3.2 Power supply current (typical)

Table 40: Power supply current
Power supply current of
400 / 500 GB PATA models
(values in milliamps. RMS)
Idle average
Idle ripple (peak-to-peak)
Low RPM idle
Low RPM idle ripple
Unload idle average
Unload idle ripple
Random R/W average
Random R/W peak
Silent R/W average
Silent R/W peak
Start up (max)
Standby average
Sleep average
Power supply current of
250 / 300 / 320 GB PATA models
(values in milliamps. RMS)
Idle average
Idle ripple (peak-to-peak)
Low RPM Idle
Low RPM Idle Ripple
Unload Idle average
Unload Idle Ripple
Random R/W average
Random R/W peak
Silent R/W average
Silent R/W peak
Start up (max)
Standby average
Sleep average
+5 Volts [mA]
Pop Mean
300
450
140
200
140
200
1
530
1600
530
1600
1050
140
100
+5 Volts [mA]
Pop Mean
300
450
140
200
140
200
1
530
1600
530
1600
1050
140
100
Deskstar T7K500 Hard Disk Drive Specification
+12 Volts [mA]
Std Dev Pop Mean
4 380
10 400
4 140
10 400
4 340
10 300
10 640
30 1700
10 440
30 1000
30 2000
4 12
4 12
+12 Volts [mA]
Std Dev Pop Mean
4 300
10 400
4 130
10 400
4 260
10 300
10 560
30 1700
10 360
30 1000
30 2000
4 12
4 12
52
Total
[W]
Std Dev
4
6.0
10
4
2.4
10
4
4.8
10
20
10.3
30
10
7.9
30
30
2 0.8
2 0.6
Total
[W]
Std Dev
4
5.0
10
4
2.3
10
4
3.8
10
20
9.4
30
10
7.0
30
30
2 0.8
2 0.6