Hitachi 2.5 inch SATA Travelstar HTS543232L9A300 Oem Specification page 26

Radiation noise
6.1.3
The disk drive shall work without degradation of the soft error rate under the following magnetic flux
density limits at the enclosure surface.
Frequency (KHz)
DC
0 < Frequency =< 60
60 < Frequency =<100
100 < Frequency =< 200
200 < Frequency =< 400
Table 13. Magnetic flux density limits
Conductive noise
6.1.4
The disk drive shall work without soft error degradation in the frequency range from DC to 20 Mhz
injected through any two of the mounting screw holes of the drive when an AC current of up to 45 mA
(p-p) is applied through a 50-ohm resistor connected to any two mounting screw holes.
5K320 SATA OEM Specification
Limits (uT RMS)
1500 0-p
500 RMS
250 RMS
100 RMS
50 RMS
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