Corrosion Test; Dc Power Requirements; Table 36.Input Voltage - Hitachi T7K250 - Deskstar - Hard Drive Specifications

1 0 0
9 0
8 0
7 0
6 0
5 0
4 0
3 0
2 0
1 0
0
- 4 5

7.2.2 Corrosion test

The drive shows no sign of corrosion inside and outside of the hard disk assembly and is functional after being sub-
jected to seven days at 50°C with 90% relative humidity.

7.3 DC power requirements

Damage to the drive electronics may result if the power supple cable is connected or disconnected to the legacy
power connector while power is being applied to the drive (no hot plug/unplug is alloweed). If SATA power supply
cable is connected or disconnected to the SATA power connector, hot plug/unplug is allowed.
7.3.1 Input voltage
Table 36: Input voltage
Input voltage supply
+5 V
+12 V
1
To avoid damage to the drive electronics, power supply voltage spikes must not exceed specifications.
N o n - o p e r a t i n g
- 3 5 - 2 5 - 1 5 - 5
During run and spin up
5 V ± 5%
12 V + 10% –8%
Deskstar T7K250 Hard Disk Drive Specification
3 1 ' C / 9 0 %
O p e r a t i n g
5 1 5 2 5
T e m p e r a t u r e ( ' C )
Absolute max spike voltage
–0.3 to 7 V
–0.3 to 15 V
54
3 6 ' C / 9 5 %
W e t B u i b = 3 5 . 0 ' C
W e t B u i b = 2 9 . 4 ' C
6 5 ' C / 1 4 %
5 5 ' C / 1 5 %
3 5 4 5 5 5 6 5
1
Supply rise time
0 to 5 sec
0 to 5 sec