Seagate Enterprise Capacity - Conducted Noise; Voltage Tolerance

Seagate Enterprise Capacity 3.5 HDD v7 SATA Product Manual, Rev. B 11
2.5.1.1 Typical current profiles
Figure 1. Typical 5V and 12V startup and operation current profiles
2.5.2 Conducted noise
Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given
below are peak-to-peak measurements and apply at the drive power connector.
2.5.3 Voltage tolerance
Voltage tolerance (including noise):
5V ± 5% 12V ± 10%
+5v = 250 mV pp from 100 Hz to 20 MHz.
+12v = 800 mV pp from 100 Hz to 8 KHz.
450 mV pp from 8 KHz to 20 KHz.
250 mV pp from 20 KHz to 5 MHz.