Seagate ST9120411ASG, ST980411ASG, ST9320421ASG, ST9250421ASG, ST9200423ASG, ST9200421AS manual Afr

Table 1:	Drive specifications
		ST9320421AS	ST9250421AS	ST9200421AS	ST9160411AS	ST9120411AS	ST980411AS
Drive specification		ST9320421ASG	ST9250421ASG	ST9200423ASG	ST9160411ASG	ST9120411ASG	ST980411ASG
Standby to ready		3.0
(sec typical)
Track-to-track seek time,		1.0
read (msec typical)
Average seek, read		11.0
(msec typical)
Average seek, write		13.0
(msec typical)
Startup current, +5V (max)		1.0 amps
Seek power (typical)		2.3 watts
Read power (typical)		2.1 watts
Write power (typical)		2.3 watts
Idle mode, low power		0.75 watts
(typical)
Standby mode		0.21 watts (typical)***
Sleep mode		0.21 watts (typical)***
Voltage tolerance		+5V ± 5%
(including noise)
Ambient temperature		0°C to 60°C (operating), –40°C to 70°C (nonoperating)
Temperature gradient		20°C (operating)
(°C per hour max)		35°C (nonoperating)
Relative humidity		5% to 90% (operating)
		5% to 95% (nonoperating)
Relative humidity gradient		30% per hour max
Wet bulb temperature		30 (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		350
(Gs max at 2 msec)
Shock, nonoperating		800
(Gs max at 2 msec)
Shock, nonoperating		1,000
(Gs max at 1 msec)
Shock, nonoperating		600
(Gs max at 0.5 msec)
Vibration, operating		1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating		5 Gs (0 to peak, 10–500 Hz)
Drive acoustics, sound
power (bels)
Idle**		2.3 (typical)
		2.5 (max)
Performance seek		2.6 (typical)
		2.7 (max)
Nonrecoverable read errors		1 per 1014 bits read
Annualized Failure Rate		0.48%
(AFR)

4 Momentus 7200.3 SATA Product Manual, Rev. B