Seagate ST500VT001 ユーザーズマニュアル
S
EAGATE
V
IDEO
2.5 HDD P
RODUCT
M
ANUAL
, R
EV
. A
11
D
RIVE
S
PECIFICATIONS
2.10
E
LECTROMAGNETIC
I
MMUNITY
When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected
to the radio frequency (RF) environment as defined in
to the radio frequency (RF) environment as defined in
2.11
R
ELIABILITY
2.11.1 Annualized Failure Rate (AFR)
The product will achieve an Annualized Failure Rate (AFR) of 0.55% when operated in an environment of ambient air
temperatures of 25°C. Operation at temperatures outside the specifications in
temperatures of 25°C. Operation at temperatures outside the specifications in
increase the product AFR. AFR is a population statistics that is not relevant to individual units.
AFR specifications are based on the following assumptions for consumer electronics environments:
• 8760 power-on-hours per year
• 10,000 average motor start/stop cycles per year
• Operations at nominal voltages
• Temperatures outside the specifications in
may reduce the product reliability.
• Normal I/O duty cycle for consumer electronics environments. Operation at excessive I/O duty cycle may degrade
product reliability.
product reliability.
The consumer electronics environment of power-on-hours, temperature, and I/O duty cycle affect the product AFR. The AFR
will be degraded if used in a enterprise application
will be degraded if used in a enterprise application
Table 7
Radio Frequency Environments
Test
Description
Performance
Level
Reference
Standard
Standard
Electrostatic discharge
Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV
B
EN 61000-4-2: 95
Radiated RF immunity
80 to 1GHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz
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
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
Power Frequency H-field
immunity
immunity
1 A/m, 50Hz/60Hz, 3 axes
A
EN 61000-4-8: 97
Voltage dips, interrupts
30% Reduction for 25 cycles
>95% Reduction for 250 cycles
>95%, 0.5 cycles
>95% Reduction for 250 cycles
>95%, 0.5 cycles
C
C
C
B
EN 61000-4-11: 94
Nonrecoverable read errors
1 per 10
14
bits read, max
Load/Unload (U/UL)
25°C, 50% relative humidity
25°C, 50% relative humidity
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
Warranty
To determine the warranty for a specific drive, use a web browser to access the following
web page::
web page::
http://www.seagate.com/support/warranty-and-replacements/
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.
drive serial number, model number (or part number) and country of purchase. The system
will display the warranty information for your drive.