MHT Series Catalog
Catalog | Jumper | CMOS
FEATURES
- Large capacity: Massive capacity has been achieved through the use of a GDT (Glass Direct Texture) Media *1 allowing up to 10.7Gb/cm2 (69.3Gb/in 2) high density and up to 40GB*2 per disk, 80GB*2 per drive (2 disks) high capacity.
- Improvement for Shock Tolerance: FDB (Fluid Dynamic Bearing) spindle motor *3 and Head Load/Unload mechanism *4 enable in high shock tolerance. The drives withstand up to 900Go-p (duration 1ms) non-operating shock and up to 225Go-p (duration 2ms) operating shock.
- Improvement for Silence: FDB spindle motor and the improvement of seek control *5 are incorporated for silent operation.
- Reduction of Power Consumption: Power consumption under the read/write operation is reduced about 10% by New LSI technology.
- High Performance: Read Ahead Cache *6 and Write Reordering Cache *7 enable the drives to execute read and write operation in high speed.
- High Reliability: 320bit length ECC (Error Correction Code) and S.M.A.R.T *8 function enable the drives to improve the data reliability.
Notes:
*1: A new type of media incorporating a new glass disk texturing process which dramatically increases the electromagnetic
conversion properties in achieving greater areal density.
*2: Fujitsu defines 1 gigabyte (GB) as 1,000,000,000 bytes for Hard Disk Drives' storage capacity size.
*3: The spindle motor which use the oil for the rotational bearing to rotate the disk.
*4: The mechanism to unload the heads to outside of media to eliminate the interference between heads and media.
*5: The data head moving operation for radius direction of the disk.
*6: The read ahead reading function for the consecutive data read command.
*7: The function for reducing the operational time by managing the order of multiple write commands.
*8: The function for monitoring the operation in HDD and forecasting the failure.
FUNCTIONAL SPECIFICATIONS
| MHT2020AT | MHT2030AT | MHT2040AT | MHT2060AT | MHT2080AT | ||
|---|---|---|---|---|---|---|
| Storage capacity | Formatted *1 | 20.0GB | 30.0GB | 40.0GB | 60.0GB | 80.0GB |
| Sector length | 512 Bytes | |||||
| Rotational speed | 4,200min-1 {4,200 rpm} | |||||
| Average Rotational Waiting Time | 7.14 ms (typical) | |||||
| Seek time | Minimum | 1.5ms (typical) | ||||
| Average | 12ms (typical) | |||||
| Maximum | 22ms (typical) | |||||
| Dimensions (W x D x H) | 70mm x 100mm x 9.5mm | |||||
| Weight | less than 99g | |||||
| Data Transfer rate | 100 MB/s maximum | |||||
| Mean Time between Failure | 300,000 hours | |||||
| Service Life | 5 years or 20,000 power on hours | |||||
| Acoustic Noise | 2.3 bels (typical) at idle | |||||
Notes:
*1: Fujitsu defines 1 gigabyte (GB) as 1,000,000,000 bytes for Hard Disk Drives' storage capacity size.
POWER SPECIFICATIONS
| MHT2020AT | MHT2030AT | MHT2040AT | MHT2060AT | MHT2080AT | ||
|---|---|---|---|---|---|---|
| Power requirements | 5V ± 5% | |||||
| Power Consumption | Read/Write*1 | Read 2.0W typical / Write 2.1W typical | ||||
| Idle | 0.65W typical | |||||
| Standby | 0.25W typical | |||||
| Sleep | 0.10W typical | |||||
| Energy Efficiency*2 | 0.022 W/GB (rank D) |
0.022 W/GB (rank D) |
0.011 W/GB (rank E) |
0.011 W/GB (rank E) |
0.008 W/GB (rank E) |
|
Notes:
1: Current and power level when the operation (command) that accompanies a transfer of 63 sectors is executed 3 times in 100
ms.
2: Energy efficiency based on the Law Concerning the Rational Use of Energy indicates the value obtained by dividing power
consumption by the storage capacity. (Japan only)
ENVIRONMENTAL SPECIFICATIONS
| MHT2020AT | MHT2030AT | MHT2040AT | MHT2060AT | MHT2080AT | ||
|---|---|---|---|---|---|---|
| Ambient temperature | Operating | 5°C to 55°C (ambient) 5°C to 60°C (disk enclosure surface) |
||||
| Non-operating | -40°C to 65°C | |||||
| Gradient | 20°C /h or less | |||||
| Relative humidity | Operating | 8% to 90% RH (non condensing) | ||||
| Non-operating | 5% to 95% RH (non condensing) | |||||
| Maximum wet bulb | 29°C (Op.)/ 40°C (Non-Op.) | |||||
| Vibration | Operating | 9.8m/s 2 {1.0G} | ||||
| Non-operating | 49m/s 2 {5.0G} | |||||
| Shock | Operating | 2,207m/s 2 {225G} | ||||
| Non-operating | 8,820m/s 2 {900G} | |||||
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