HP 6618 (AP), 6744 (US), 6730 (US/CAN), 6657 (LA), 6649F (US/CAN) manual Drive Specification ST320423A

U10 Family Product Manual, Rev. A

3

Drive Specification

ST320423A

ST315323A

ST310212A

Full-stroke seek time

(msec typical)

23.0 (read) 25.0 (write)

Average latency (msec)

5.56 msec

Power-on to ready

(sec typical)

10 sec

Standby to ready

(sec typical)

10 sec

Spindown (sec typical)

10 sec

Startup current

(typical) 12V (peak)

1.5 amps

Seek power (typical)

7.0 watts

Read/Write power

6.5 watts

Idle mode (typical)

3.5 watts

Standby/Sleep mode (typical)

0.8 watts

Voltage tolerance

5V ± 5%, 12V ± 10%

(including noise)

Ambient temperature

0° to 60°C (op.), –40° to 70°C (nonop.)

Temperature gradient

(°C per hour max)

20°C

Relative humidity

5% to 90% (op.)

(op. and nonop.)

5% to 95% (nonop.)

Relative humidity, gradient

30% per hour max

Wet bulb temperature (°C max)

29.4 (op.), 40.0 (nonop.)

Altitude, operating

–61 m to 3,048 m (–200 ft to 10,000+ ft)

Altitude (meters below mean sea

–122 m to 12,192 m (–400 ft to 40,000+ ft)

level, max)

Shock, operating

(Gs max at 2 msec)

63

Shock, nonoperating

(Gs max at 2 msec)

350 Gs

Vibration, operating

0.5 Gs (0 to peak, 5–350 Hz)

Vibration, nonoperating

5 Gs (0 to peak, 5–350 Hz)

Drive acoustics

Sound power in bels (10.5 msec)

Idle mode

3.2 (typical), 3.6 (max)

Seek mode

3.5 (typical), 3.9 (max)