Specifications

PRODUCT SPECIFICATIONS
3 – 17
Power Requirements (Average)
Power Mode Definitions
Active
The drive is spinning and most circuitry is powered on. The drive is capable of responding to read commands in
the shortest possible time. Read/Write heads are positioned over the data area.
Idle
The drive is spinning, the actuator is parked and powered off and all other circuitry is powered on. The drive is
capable of responding to read commands within 40 ms.
Read/Write
Data is being read from or written to the drive.
Spin-up
The drive is spinning up following initial application of power and has not yet reached full speed.
Sleep
This is the lowest power state. The interface becomes inactive. A software or hardware reset is required to return
the drive to Active.
Standby
The spin motor is not spinning. The drive will leave this mode upon receipt of a command that requires disk
access. The time-out value for this mode is programmable. The buffer is active to accept write data.
Seek
A random access operation by the disk drive.
Environmental
PARAMETER OPERATING NON-OPERATING/STORAGE
Temperature 5° C to 55° C Low temperature (-40° C) per MIL-STD-810E, Method 502.3.
High temperature (71° C) per MIL-STD-810E, Method 501.3,
Climatic Category; Hot-induced conditions.
Thermal Gradient (maximum) 25° C per hour 25° C per hour
Relative Humidity 5% to 95% (Non-condensing)
Wet Bulb 27° C maximum
Altitude -200 to 10,000 feet (with any
naturally occurring temperature
and humidity within this range)
Per MIL-STD-810E, Method 500.3, Low pressure (altitude) Test
Procedure I. Storage; Test Condition 2, Transport aircraft cargo
compartment pressure.
MODE 12V ± 8% 5V ± 5% POWER
Spin-up (peak) 1058 mA 260 mA 12.7 W
Active 234 mA 400 mA 4.8 W
Seek 530 mA 418 mA 8.5 W
Read/Write 237 mA 430 mA 5.0 W
Idle 232 mA 224 mA 3.9 W
Standby 2 mA 140 mA 0.7 W
Sleep 2 mA 80 mA 0.4 W