Barracuda SATA Product Manual, Rev. B 15

www.seagate.com Drive Specifications

*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and
formatting.
**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.
2.2 Formatted capacity
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and
formatting.
Relative humidity 5% to 95% (operating)
5% to 95% (non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max.) 30% per hour 30% per hour
Wet bulb temperature 37.7°C max (operating)
40.0°C max (non-operating)
37.7°C max (operating)
40.0°C max (non-operating)
Altitude, operating –60.96m to 3,048m
(–1000 ft to 10,000+ ft)
–60.96m to 3,048m
(–1000 ft to 10,000+ ft)
Altitude, non-operating
(below mean sea level, max.)
–60.96m to 12,192m
(–1000 ft to 40,000+ ft)
–60.96m to 12,192m
(–1000 ft to 40,000+ ft)
Operational Shock (max.) 70 Gs at 2ms 70 Gs at 2ms
Non-Operational Shock (max.) 350 Gs at 2ms 350 Gs at 2ms
Vibration, operating 2Hz to 22Hz: 0.25 Gs, Limited displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
2Hz to 22Hz: 0.25 Gs, Limited displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
Vibration, non-operating 5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle** 2.6 bels (typical)
2.7 bels (max)
2.6 bels (typical)
2.7 bels (max)
Seek 2.8 bels (typical)
3.0 bels (max)
2.8 bels (typical)
3.0 bels (max)
Non-recoverable read errors 1 per 1014 bits read 1 per 1014 bits read
Annulized Failure Rate (AFR) 0.34% 0.34%
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 dis-
play the warranty information for your drive.
Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
Serial ATA Revision 2.5 specification
Yes Yes

Model Formatted

capacity*

Guaranteed

sectors Bytes per sector

ST31000524AS 1000GB 1,953,525,168

512

ST3750525AS 750GB 1,465,149,168

ST3500413AS 500GB 976,773,168

ST3320413AS 320GB 625,142,448

ST3250312AS 250GB 488,397,168

ST3160316AS 160GB 312,581,808

Table 3 Drive specifications summary for 250GB and 160GB models (continued)

Drive Specification ST3250312AS ST3160316AS