Seagate ST9120824A - Momentus 4200.2 120 GB Hard Drive Product Manual page 14

Table 1: Specifications
Drive specification
Average seek time
(msec typical)
Average seek, read
(msec typical)
Average seek, write
(msec typical)
Full-stroke seek (msec)
Seek power (typical)
Read/write power (typical)
Idle mode (low power, typical)
Standby mode
Sleep mode
Voltage tolerance
(including noise)
Ambient temperature
Temperature gradient
(°C per hour max,
noncondensing)
Relative humidity
(noncondensing)
Relative humidity gradient
Wet bulb temperature (°C
max)
Altitude, operating
Altitude, nonoperating
(below mean sea level, max)
Shock, operating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 1 msec)
Shock, nonoperating
(Gs max at 0.5 msec)
Vibration, operating
(max displacement may
apply below 10 hz)
Vibration, nonoperating
(max displacement may apply
below 22 hz)
Drive acoustics, sound power
(bels), 2 disc
Idle*
Performance seek
Nonrecoverable read errors
Annualized Failure Rate (AFR) 0.73%
4
ST9120824A ST9100825A ST980829A
12.5
12.5
14.5
22 (typical); 24 (max)
2.00 watts
Read: 1.80 watts; Write: 1.80 watts
0.80 watts
0.26 watts (typical)**
0.26 watts (typical)**
5V ± 5%
5° to 55°C (operating)
–40° to 70°C (nonoperating)
20°C (operating)
30°C (nonoperating)
5% to 90% (operating)
5% to 95% (nonoperating)
30% per hour max
30°C (operating)
40°C (nonoperating)
–304.8 m to 3,048 m (–1000 ft to 10,000 ft)
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
250
800
900
400
1.0 Gs (0 to peak, 5–500 Hz)
5.0 Gs (0 to peak, 5–500 Hz)
2.4 (typical)
2.6 (max)
2.9 (typical)
3.1 (max)
14
1 per 10 bits read
ST960812A ST9402112A ST930218A
Momentus 4200.2 Product Manual, Rev. A