Seagate ST38421A - U4 8.4 GB Hard Drive Product Manual page 11

U4 Family Product Manual, Rev. D
Drive Specification
Track-to-track seek time
(msec typical)
Average seek time (msec
typical)
Full-stroke seek time
(msec typical)
Average latency (msec)
Power-on to ready
(sec typical)
Standby to ready
(sec typical)
Startup current (typical):
12V (peak)
Seek power (typical)
Idle mode (typical)
Standby mode (typical)
Sleep mode (typical)
Voltage tolerance
(including noise)
Ambient temperature
Temperature gradient
(°C per hour max)
Relative humidity
(op. and nonop.)
Relative humidity
gradient
Wet bulb temperature
(°C max)
Altitude, operating
Altitude, nonoperating
Shock (Gs at 2 msec)
operating
nonoperating
Vibration, operating
ST32112A ST34311A
2.0 (read), 2.75 (write)
10.5 (read), 11.5 (write)
24.0 (read), 26.0 (write)
5.56 msec
8 sec
7 sec
1.5 amps
7.0 watts
3.1 watts
0.8 watts
0.8 watts
5V 5%, 12V
0° to 55°C (op.), –40° to 70°C (nonop.)
20°C
5% to 90% (op.)
5% to 95% (nonop.)
30% per hour max
29.4 (op.), 40.0 (nonop.)
–61 m to 3,048 m (–200 ft to 10,000
–122 m to 12,192 m (–400 ft to 40,000
63 Gs
300 Gs
0.5 Gs (0 to peak, 5–350 Hz)
3
ST36421A ST38421A
10%
+
ft)
+
ft)