Seagate 80GB HDD ST380022A User Manual

Product codes
ST380022A
Page of 56
U7 Product Manual, Rev. D
17
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
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
C
C
C
B
EN 61000-4-11: 94
Nonrecoverable read errors
1 per 10
14
 bits read, max.
Mean time between failures
600,000 power-on hours 
(nominal power, 25°C ambient temperature)
Service life
The drive shall have a useful service life of five years
Contact start-stop cycles
50,000 cycles
(at nominal voltage and temperature, with 60 cycles 
per hour and a 50% duty cycle)
Preventive maintenance
None required