Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive User Manual

Deskstar T7K500 Hard Disk Drive Specification
53
7.3.3 Power supply generated ripple at drive power connector
Table 41: Power supply generated ripple at drive power connector
Maximum (mV pp) MHz
+5 V dc 100 0-10
+12 V dc 150 0-10
Power supply current of
400 / 500 GB SATA models
+5 Volts [mA] +12 Volts [mA]
(values in milliamps. RMS) Pop Mean Std Dev Pop Mean Std Dev
Total
[W]
Idle average 500 4 380 4
Idle ripple (peak-to-peak) 450 10 400 10
7.0
Low RPM idle 340 4 140 4
Low RPM idle ripple 200 10 400 10
3.4
Unload idle average 340 4 340 4
Unload idle ripple 200 10 300 10
5.8
Random R/W average
1
730 10 640 20
Random R/W peak 1800 30 1700 30
11.3
Silent R/W average 730 10 440 10
Silent R/W peak 1800 30 1000 30
8.9
Start up (max) 1250 30 2000 30
Standby average 340 4 12 2 1.8
Sleep average 300 4 12 2
1.6
Power supply current of
250 / 300 / 320 GB SATA models
+5 Volts [mA] +12 Volts [mA]
(values in milliamps. RMS) Pop Mean Std Dev Pop Mean Std Dev
Total
[W]
Idle average 500 4 300 4
Idle ripple (peak-to-peak) 450 10 400 10
6.0
Low RPM Idle 340 4 130 4
Low RPM Idle Ripple 200 10 400 10
3.3
Unload Idle average 340 4 260 4
Unload Idle Ripple 200 10 300 10
4.8
Random R/W average
1
730 10 560 20
Random R/W peak 1800 30 1700 30
10.4
Silent R/W average 730 10 360 10
Silent R/W peak 1800 30 1000 30
8.0
Start up (max) 1250 30 2000 30
Standby average 340 4 12 2 1.8
Sleep average 300 4 12 2 1.6

Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications

General

Brand	Hitachi
Model	HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive
Category	Storage
Language	English