Seagate ST380013A Fiche technique télécharger pdf (Page 21)

Barracuda 7200.7 Product Manual, Rev. N 13

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

2.12 Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in

performance when subjected to the radio frequency (RF) environments defined in the following table:

Table 1: Fluid Dynamic Bearing (FDB) motor acoustics

Models Idle* Performance seek

ST3200822A

ST3200021A

ST3160023A

ST3160021A

ST3120026A

ST3120022A

<2.5 bels (typ)

2.7 bels (max)

3.4 bels (typ)

3.7 bels (max)

ST380013A

ST380011A

ST340014A

<2.2 bels (typ)

2.6 bels (max)

3.1 bels (typ)

3.5 bels (max)

Test Description

Performance

level

Reference

standard

Electrostatic discharge Contact, HCP, VCP: ± 4

kV; Air:

± 8 kV

B EN 61000-4-2: 95

Radiated RF immunity 80 to 1,000 MHz, 3 V/m,

80% AM with 1 kHz sine

900 MHz, 3 V/m, 50% pulse

modulation @ 200 Hz

A EN 61000-4-3: 96

ENV 50204: 95

Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on

external I/O

B EN 61000-4-4: 95

Surge immunity ± 1 kV differential, ± 2 kV com-

mon, AC mains

B EN 61000-4-5: 95

Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms,

80% AM with 1 kHz sine

A EN 61000-4-6: 97

Voltage dips, interrupts 0% open, 5 seconds

0% short, 5 seconds

40%, 0.10 seconds

70%, 0.01 seconds

EN 61000-4-11: 94

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 53 54

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