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22 Barracuda SATA Product Manual, Rev. G
Drive Specifications www.seagate.com
*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.
2.10.1 Test for Prominent Discrete Tones (PDTs)
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this
process is the use of the absolute threshold of hearing. Seagate uses this threshold curve (originated in ISO 389-
7) to discern tone audibility and to compensate for the inaudible components of sound prior to computation of
tone ratios according to Annex D of the ECMA-74 standards.
2.11 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
Table 8.
2.12 Warranty
To determine the warranty for a specific drive, use a web browser to access the following web page:
support.seagate.com/customer/warranty_validation.jsp
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.
2.13 Agency certification
2.13.1 Safety certification
These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked
as to the certify agency.
1 Disk
(500GB, 320GB,
250GB)
2.2 bels (typical)
2.4 bels (max)
2.4 bels (typical)
2.5 bels (max)
Table 8 Radio frequency environments
Test Description
Performance
level
Reference
standard
Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN61000-4-2: 95
Radiated RF immunity 80MHz to 1,000MHz, 3 V/m,
80% AM with 1kHz sine
900MHz, 3 V/m, 50% pulse modulation @
200Hz
A EN61000-4-3: 96
ENV50204: 95
Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on external I/O B EN61000-4-4: 95
Surge immunity ± 1 kV differential, ± 2 kV common,
AC mains
B EN61000-4-5: 95
Conducted RF immunity 150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz
sine
A EN61000-4-6: 97
Voltage dips, interrupts 0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
C
C
C
B
EN61000-4-11: 94
Table 7 Fluid Dynamic Bearing (FDB) motor acoustics (continued)