Seagate Barracuda ST360019A User Manual download pdf (Page 22)

12 U Series 9 Product Manual, Rev. D

*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:

2.13 Reliability

Table 1: Fluid Dynamic Bearing (FDB) motor acoustics

Acoustic mode

Models Idle* Quiet seek

ST3160022A

ST3120025A

ST380012A

ST360019A

<2.5 bels (typ)

2.7 bels (max)

2.8 bels (typ)

3.0 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

Nonrecoverable read errors 1 per 10

bits read, max.

Mean time between failures 600,000 power-on hours (nominal power, 25°C ambient temperature)

Contact start-stop cycles 50,000 cycles

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

Service Life 5 Years

Preventive maintenance None required

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