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Momentus 5400 FDE Product Manual, Rev. C
Average seek, write (msec typical) 14.5
Full-stroke seek (msec) 22 (typical); 24 (max)
Seek power (typical) 2.0 watts
Read/write power (typical) Read: 2.50 watts; Write: 2.50 watts
Idle mode (typical, low power) 1.40 watts
Standby mode 0.96 watts (typical)***
Sleep mode 0.96 watts (typical)***
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature 5° to 55°C (operating), –40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max, noncondensing)
20°C (operating)
30°C (nonoperating)
Relative humidity
(noncondensing)
5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (°C max) 30°C (operating)
40°C (nonoperating)
Altitude, operating –304.8 m to 3,048 m (–1000 ft to 10,000 ft)
Altitude, nonoperating
(below mean sea level, max)
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
Shock, operating
(Gs max at 2 msec)
250
Shock, nonoperating
(Gs max at 2 msec)
800
Shock, nonoperating
(Gs max at 1 msec)
900
Shock, nonoperating
(Gs max at 0.5 msec)
400
Vibration, operating
(max displacement may
apply below 10 hz)
1.0 Gs (0 to peak, 5–500 Hz)
Vibration, nonoperating
(max displacement may apply
below 22 hz)
5.0 Gs (0 to peak, 10–500 Hz)
Drive acoustics, sound power (bels), 2
disc
Idle** 2.4 (typical)
2.6 (max)
Performance seek 2.9 (typical)
3.1 (max)
Nonrecoverable read errors 1 per 10
14
bits read
Annualized Failure Rate (AFR) 0.73%
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 10% relative humidity
55°C, 16% relative humidity
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
Table 1: Specifications
Drive specification ST9120826A ST9100826A ST980821A ST960814A ST940811A