Seagate Comprehensive Specifications for ATA Devices: ST9160301AS and More

Table 1:	Drive specifications for 500, 400 and 320 GB models
		ST9500325AS		ST9320325AS
Drive specification		ST9500325ASG	ST9400326AS	ST9320325ASG
Average seek, read (msec typical)		14
Full-stroke seek, read (msec max)		30
Startup current, +5V (max)		1 amp
Seek power (typical)		1.54 watts
Read/write power (typical)		Read: 1.40 watts; Write: 1.78 watts
Idle mode, low power (typical)		0.67 watts
Standby mode		0.20 watts (typical)***
Sleep mode		0.20 watts (typical)***
Voltage tolerance (including noise)		+5V ± 5%
Ambient temperature		0° to 60°C (operating), –40° to 70°C (nonoperating)
Temperature gradient		20°C (operating)
(°C per hour max)		35°C (nonoperating)
Relative humidity		5% to 95% (operating)
		5% to 95% (nonoperating)
Relative humidity gradient		30% per hour max
Wet bulb temperature		37.7 (operating)
(°C max)		40 (nonoperating)
Altitude, operating		–304.8 m to 3,048 m (–1,000 ft to 10,000+ ft)
Altitude, nonoperating		–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
(meters below mean sea level, max)
Shock, operating (Gs max at 2 msec)		350
Shock, nonoperating (Gs max at 2 msec)		800
Shock, nonoperating (Gs max at 1 msec)		1,000
Shock, nonoperating (Gs max at 0.5 msec)		600
Vibration, operating		1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating		5.0 Gs (0 to peak, 5–500 Hz)
Drive acoustics, sound power (bels)
Idle**		2.4 (typical)
		2.6 (max)
Performance seek		2.6 (typical)
		2.7 (max)
Nonrecoverable read errors		1 per 1014 bits read
Annualized Failure Rate (AFR)		0.48%
Load/Unload (U/UL) cycles
25°C, 50% relative humidity		600,000 software-controlled power on/off cycles
		20,000 hard power on/off cycles
32°C, 80% relative humidity		600,000 software-controlled power on/off cycles
5°C, 80% relative humidity		20,000 hard power on/off cycles
5°C, 10% relative humidity
55°C, 16% relative humidity
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
		You will be asked to provide the drive serial number, model number (or part number) and
		country of purchase. After submitting this information, the system will display the war-
		ranty information for your drive.
Supports Hotplug operation per Serial ATA		Yes (requires COMRESET from host after a hotplug event)
Revision 2.6 specification

see notes after Table 3.

4 Momentus 5400.6 SATA Product Manual, Rev. E