Momentus 4200.2 Product Manual, Rev. C
Read/write power (typical) Read: 1.80 watts; Write: 1.80 watts
Idle mode (low power, typical) 0.80 watts
Standby mode 0.26 watts (typical)***
Sleep mode 0.26 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, 5–500 Hz)
Drive acoustics, sound power (bels), 2 disc
Idle** 2.4 (typical)
2.6 (max)
Performance seek 2.9 (t ypical)
3.1 (max)
Nonrecoverable read errors 1 per 1014 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
Service life 5 years
Warranty
5 years on distribution units.
To determine the warranty for a specific drive, use a web browser to access the
following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to pro-
vide the drive serial number, model number (or part number) and country of pur-
chase. The system will display the warranty information for your drive.
Table 1: Specifications for 120, 100, and 80 GB models

Drive specification ST9120824A ST9100825A ST980829A