Hitachi HTS541680J9SA00 manual Radiation noise, Conductive noise, Magnetic fields, Frequency KHz

Models: HTS541640J9SA00 HTS541616J9SA00 HTS541680J9SA00 HTS541612J9SA00 HTS541660J9SA00

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Travelstar 5K160 (SATA) Hard Disk Drive Specification

6.1.3Radiation 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

6.1.4Conductive 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.

6.1.5Magnetic fields

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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Hitachi HTS541680J9SA00, HTS541640J9SA00 Radiation noise, Conductive noise, Magnetic fields, Frequency KHz, Limits uT RMS