Table 13. Magnetic Flux Density Limits - Hitachi HTS542516K9SA00 Specifications

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)
0–60
61–100
101–200
201–400

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.
The disk drive will withstand radiation and conductive noise within the limits shown below. The test
method is defined in the Noise Susceptibility Test Method specification, P/N 95F3944.
Limits (uT RMS)
500
250
100
50
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5K250 SATA OEM Specification