Product manual

U Series Family Product Manual, Rev. B 3
Average seek read
(msec typical) 9.9
Average seek write
(msec typical) 10.9
Full-stroke seek time
(msec typical) 22.0 (read) 24.0 (write)
Average latency (msec) 5.55 msec
Power-on to ready (sec typical) 6.5 sec
Standby to ready (sec typical) 6.5 sec
Spindown (sec typical) 10 sec
Startup current
(typical) 2.5 amps
Seek power (typical) 7.5 watts
Read/Write power 7.5 watts
Idle mode (typical) 5.0 watts
Standby mode (typical) 1.2 watts
Sleep mode (typical) 0.9 watts
Voltage tolerance
(including noise) 5V
±
5%, 12V
±
10%
Ambient temperature 0° to 60°C (op.), –40° to 70°C (nonop.)
Temperature gradient
(°C per hour max) 20°C
Relative humidity
(op. and nonop.)
5% to 90% (op.)
5% to 95% (nonop.)
Relative humidity gradient 30% per hour max
Wet bulb temperature (°C max) 29.4 (op.), 40.0 (nonop.)
Altitude, operating –60.96 m to 3,048 m (–200 ft to 10,000
+
ft)
Altitude (meters below mean sea
level, max) –121.92 m to 12,192 m (–400 ft to 40,000
+
ft)
Shock, operating
(Gs max at 2 msec) 63 Gs
Shock, nonoperating
(Gs max at 1 and 2 msec) 350 Gs
Vibration, operating 0.5 Gs (0 to peak, 22–350 Hz)
Vibration, nonoperating 5 Gs (0 to peak, 22–350 Hz)
Drive Specification ST380020A ST360020A ST340810A ST320410A