5K250 SATA OEM Specification
Page 25 of 171
6.1.3 Radiation noise
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) Limits (uT RMS)
0–60 500
61–100 250
101–200 100
201–400 50
Table 13. Magnetic flux density limits
6.1.4 Conductive noise
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.
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