Device Overview
1.1 Features
1.1.1 Functions and performance
The fillowing features of the MHJ Series and MHK Series are described.
(1) Compact
The MHJ2181AT has 3 disks, and its height is 12.5 mm (0.492 inch). The MHK2120AT, MHK2090AT and MHK2060AT have 1 disk or 2 disks of 65 mm (2.5 inches) diameter, and its height is 9.5 mm (0.374 inch).
(2) Large capacity
The disk drive can record up to 6.0 GB (formatted) on one disk using the 16/17 MTR recording method and 15 recording zone technology. The MHJ Series and MHK Series have a formatted capacity of 18.1 GB (MHJ2181AT), 12.0 GB (MHK2120AT), 9.0 GB (MHK2090AT) and 6.0 GB (MHK2060AT) respectively.
(3)
The disk drives (the MHJ Series and MHK Series) have an internal data rate up to
22.3MB/s. The disk drive supports an external data rate up to 66.6 MB/s (U- DMA mode 4).
(4)Average positioning time
Use of a rotary voice coil motor in the head positioning mechanism greatly increases the positioning speed. The average positioning time is 13 ms (at read).
1.1.2 Adaptability
(1) Power save mode
The power save mode feature for idle operation, stand by and sleep modes makes The disk drives (the MHJ Series and MHK Series) ideal for applications where power consumption is a factor.
(2) Wide temperature range
The disk drives (the MHJ Series and MHK Series) can be used over a wide temperature range (5°C to 55°C).
(3) Low noise and vibration
In Ready status, the noise of the disk drives (the MHJ Series and MHK Series) is only about 30 dBA (measured at 1 m apart from the drive under the idle mode).
