Seagate Constellation ES - Current Profiles; Figure 1. 2 TB Model Current Profiles

Constellation ES.1 SAS Product Manual, Rev. E 27
7.3.3 Current profiles
The +12V (top) and +5V (bottom) current profiles for the Constellation ES.1 drives are shown below.
Figure 1. 2TB model current profiles
Note: All times and currents are typical. See Table 2 for maximum current requirements.