Seagate ST500LM021 - Electromagnetic Immunity; Reliability

Seagate Laptop Thin HDD Product Manual, Rev. E 15
Drive Specifications
2.10 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) environment as defined in Table 7.
2.11 Reliability
Table 7 Radio Frequency Environments
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 1GHz, 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
Power Frequency H-field
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
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 600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
Rated workload
Average rate of <55TB/year.
The MTBF specification for the drive assumes the I/O workload does not exceed the average annu-
alized workload rate limit of 55TB/year. Workloads exceeding the annualized rate may degrade the
drive MTBF and impact product reliability. The average annualized workload rate limit is in units of
TB per year, or TB per 8760 power-on hours. Workload rate limit = TB transferred × (8760/recorded
power-on hours).
Warranty
To determine the warranty for a specific drive, use a web browser to access the following web page:
http://www.seagate.com/support/warranty-and-replacements/.
From this page, click on the “Check to see if the drive is under Warranty” link. The following are
required to be provided: the drive serial number, model number (or part number) and country of
purchase. The system will display the warranty information for the drive.