Seagate Medalist ST31082A, Product Manual

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Specifications Chapter 2
Technical Reference Manual Page 9
Power Requirements
Mode: *
+5 Volts
(typical): +12 Volts
(typical): Watts
(typical):
(maximum):
Read/Write 450 mA 160 mA 4.2 W 4.6 W
Seek/Rd/Wr 430 mA 200 mA 4.6 W 4.9 W
Idle
270 mA 180 mA 3.5 W 4.0 W
Standby 200 mA 0 mA 1.0 W 1.2 W
Sleep 130 mA 0 mA 0.7 W 1.0 W
Spin-Up
500 mA 1200 mA N/A N/A
Peak 500 mA 1200 mA N/A N/A
* Refer to chapter 3 for the definitions of the modes. Spin-Up Mode current draw is for 7 seconds,
maximum. Maximum power is when the supply voltage is at the worst case condition.
Minimum/Maximum Voltage:
•
+5V: +5%
• +12V: +5%
Maximum Peak-to-Peak Noise Allowed (DC to 1 MHz, with equivalent
resistive load):
• +5V: 2%
• +12V: 1%
Environmental Tolerances
Temperature:
•
Operating: 5° to 55° C
• Non-operating: -40° to 60° C
• Thermal Gradient: 20
o
C per hour maximum
Relative Humidity (non-condensing):
•
Operating: 8 to 80%
• Non-operating: 8 to 80%
• Wet Bulb: 28.9
o
C maximum
Altitude (relative to sea level):
•
Operating: -200 to 10,000 feet
• Non-operating:-200 to 40,000 feet (maximum)
• Altitude Gradient: 1,000 feet/minute
Shock (half-sine pulse, 11 ms duration):
•
Operating: 5G without non-recoverable errors
• Non-operating: 75G without non-recoverable errors