Environmental Specifications; Ambient Temperature; Temperature Gradient; Humidity - Seagate SERIAL ATA ST3120213SCE Product Manual

drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the
drive accepts all commands and returns to Active mode when disc access is necessary.
2.9

Environmental specifications

2.9.1

Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions for
standard models. Recommended measurement locations are shown in Figure 6.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 44°C (112°F) at 10,000 feet
(3,048 meters).
Operating: 0° to 60°C (32° to 140°F)
Nonoperating: –40° to 70°C (–40° to 158°F)
2.9.2

Temperature gradient

Operating: 20°C per hour (68°F per hour max), without condensation
Nonoperating: 30°C per hour (86°F per hour max)
2.9.3

Humidity

2.9.3.1 Relative humidity
Operating: 5% to 90% noncondensing (30% per hour max)
Nonoperating: 5% to 95% noncondensing (30% per hour max)
2.9.3.2 Wet bulb temperature
Operating: 37.7°C (99.9°F max)
Nonoperating: 40°C (104°F max)
2.9.4

Altitude

Operating: –60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)
Nonoperating: –60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)
2.9.5

Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.9.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.
16 DB35.2 Serial ATA Product Manual, Rev. B