Seagate ST380012ACE Product Manual - Page 22

Electromagnetic immunity, Reliability

Get Seagate ST380012ACE - U Series CE 80 GB Hard Drive PDF manuals and user guides View all Seagate ST380012ACE manuals
Add to My Manuals
Save this manual to your list of manuals

Page 22 highlights

Table 1: Fluid Dynamic Bearing (FDB) motor acoustics Models ST3160022ACE ST3120025ACE ST380012ACE Acoustic mode Idle*

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
12
U Series 9 ce Product Manual, Rev. F
*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
ST3160022ACE
ST3120025ACE
ST380012ACE
<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
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)
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