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Deskstar T7K250 hard disk drives
specifications
| Deskstar T7K250 models |
Capacity (GB) |
RPM |
Data buffer |
Interface |
|
| HDT722525DLAT80 |
| 250 |
7200 |
8 MB |
Parallel-ATA |
|
| HDT722516DLAT80 |
| 160 |
7200 |
8 MB |
Parallel-ATA |
|
| HDT722525DLA380 |
|
| HDT722516DLA380 |
|
| |
|
|
| Configuration |
Parallel-ATA |
Serial-ATA |
| |
|
|
| Interface |
ATA Ultra-133 |
SATA 3.0 Gb/s |
| Capacity (GB)1 |
250 / 160 |
 |
| Data heads (physical) |
4 / 3 |
|
| Data disks |
2 |
|
| |
|
|
| Performance |
|
|
| Data buffer2 |
8 MB |
|
| Rotational speed (rpm) |
7,200 |
|
| Media transfer rate (max. Mbits/sec) |
843.2 |
|
| Interface transfer rate (max. MB/sec) |
133 |
300 |
| Sustained data rate (MB/sec) |
67.8- 32.9 (zone 0 - 29) |
|
| Seek time (read, typical)3 |
8.5 |
|
| |
|
|
| Reliability |
|
|
| Error rate (non-recoverable) |
1 in 10E14 |
|
| Start/stops (at 40° C) |
50,000 |
|
| Availability4 |
24/7 |
|
| |
|
|
| Acoustic |
|
|
| Idle (Bels) |
2.8 |
|
| |
|
|
| Power |
|
|
| Requirement |
+5 VDC (+/- 5%), +12 VDC (+10%/-8%) |
|
| Dissipation |
|
|
| Startup current (max. A) |
1.88 (+12V) & 0.9 (+5V) |
1.88 (+12V) & 1.2 (+5V) |
| Idle (W) |
5.2 |
6.2 |
| |
|
|
| Physical size |
|
|
| Height (mm) |
25.4 |
|
| Width (mm) |
101.6 |
|
| Depth (mm) |
146 |
|
| Weight (max. g) |
640 |
|
| |
|
|
| Environmental characteristics |
|
|
| Operating |
|
|
| Ambient temperature (C) |
5° to 55° C |
|
| Relative humidity (non-condensing) |
8% to 90% |
|
| Shock (half sine wave, 2ms) |
55 |
|
| Vibration (random (RMS)) (G) |
0.67G for horizontal, 0.56G for vertical |
|
| |
|
|
| Non-operating |
|
|
| Ambient temperature (C) |
-40° to 65° |
|
| Relative humidity (non-condensing) |
5% to 95% |
|
| Shock (half sine wave, 2ms) (G) |
350 |
|
| Vibration (random (RMS)) (G) |
1.04G rms (XYZ) |
|
| RoHS compliant5 |
Some part numbers |
|
|
1 GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2 Buffer capacity includes 270 or less KB used for drive firmware.
3 Includes command overhead.
4 Low duty cycle, non mission-critical applications in PC, nearline and consumer electronics customer environments are different from application to application.
5 RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in electrical and electronic equipment. Refer to the Deskstar RoHS Certificate of Compliance for more information.
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