Seagate ST380211AS ユーザーズマニュアル

18

Barracuda 7200.9 Serial ATA Product Manual, Rev. C

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:

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 common, 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

C

 

C

 

C

 

B

EN 61000-4-11: 94

Nonrecoverable read errors

1 per 10

14

 bits read, max

Annualized Failure Rate (AFR)

0.34% (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)

Warranty

5 years on distribution units.
To determine the warranty for a specific drive, use a web browser to access the fol-
lowing web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to provide 
the drive serial number, model number (or part number) and country of purchase. 
The system will display the warranty information for your drive.

Preventive maintenance

None required.