ST920217AS
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Seagate ST920217AS (20GB)
Full list of Features
| Data Storage Capacity | |
|---|---|
| Per drive, Formatted | 20 GB |
| Number of Platters | 1 |
| Number of Heads | 1 |
| Bytes /Sector | 512 |
| Number of Sectors/Track | 63 |
| Number of Cylinders | 16383 |
| Number of Sectors | 41021800 |
| Total Logical Data Bytes | 21003161600 |
| Datasheet | |
| Rotational Speed (rpm) | 5400 |
| Maximum Internal transfer rate (Mbits/sec) | 57.6 |
| I/O data-transfer rate (Mbytes/sec max) | 150 |
| Data transfer rates max (Gbit/sec) | 1.5 |
| Recording density (KBPI) (Max) | 675 |
| Track density (KTPI)(Max) | 114 |
| Areal density (Gbit/sq-inch - Max) | 81 |
| Number of Zones | |
| Performance characteristics | |
| Average seek time (read) | <16ms |
| Average seek time (write) | <16ms |
| Full stroke seek time (read) | <24ms |
| Full stroke seek time (write) | <24ms |
| Power-on-ready (sec) | 4.0 (typ.) / 8.0s (max.) |
| Command overhead (ms) | 1.0ms |
| Track-to-track (read) | <2ms |
| Track-to-track (write) | <2ms |
| Average Latency time | 5.6ms (typ.) |
| Interface | |
| Type | SATA 1.0 |
| Buffer (MB) | 2 |
| Data Transfer Rate | Max. 1.5 Gb/sec |
| Nominal Power Requirements | |
| Voltage (C); Supply | +5V (5%) |
| Idle (Watts) | 2.5 (performance) |
| Standby (Watts) | <1.15 |
| Sleep (Watts) | <1.15 |
| Reads (Watts) | 2.3 (average) |
| Writes (Watts) | 2.3 (average) |
| Seeks (Watts) | 2.9 (average) |
| Start-up (A) | 1.0 (typ.) |
| Physical & Environmental Specifications (mm) | |
| Height | 9.5 (9.5mm ±0.2) / 0.374" +/-0.0078" |
| Width | 70 (69.85mm ±0.25) / 2.75" +/-0.0098" |
| Depth | 100 (100.5078±1.57) / 3.957" +/-0.062" |
| Weight | 100 gram / 0.22 pounds |
| Ambient | |
| Operating: Temperature | 5° to 55°C (41° to 131°F) |
| Operating: Relative humidity | 8% to 90% noncondensing (30% per hour max) |
| Operating: Maximum wet bulb temperature | 30°C (86°F max) |
| Operating: Maximum temperature gradient | 20°C per hour (68°F per hour max), without condensation |
| Operating: Altitude | –304.8 m to 3,048 m (–1,000 ft to 10,000+ ft) |
| Non-Operating: Temperature | –40° to 70°C (–40° to 158°F) |
| Non-Operating: Relative humidity | 5% to 95% noncondensing (30% per hour max) |
| Non-Operating: Maximum wet bulb temperature | 40°C (104°F max) |
| Non-Operating: Maximum temperature gradient | 30°C per hour (86°F per hour max), without condensation |
| Non-Operating: Altitude | –304.8 m to 12,192 m (–1,000 ft to 40,000+ ft) |
| Topcover Max. temperature | <65°C (<149°F) |
| Drivecircuitboard Max. temperature | <65°C (<149°F) |
| Vibration and Shock | |
| Operating Vibration | 0.5 G (22–350 Hz) / 0.25 G (351–500 Hz) |
| Non-Operating Vibration | 5 Gs (0 to peak, 22–350 Hz) / 1.0 G (351–500 Hz) |
| Operating Shock | 100 G 2 msec |
| Non-Operating Shock | 500 G 2 msec / 350 G 1 msec / 200 G 0.5 msec |
| Soundlevel | |
| Acoustic Noise (Idle Mode) | 2.4 Bels (typ.) |
| Acoustic Noise (Operating Mode) | 2.7 Bels (typ.) |
Manual:
- http://www.seagate.com/staticfiles/support/disc/manuals/ce/LD25%20Series/LD25.1/100371274c.pdf
- http://files.hddguru.com/download/Datasheets/Seagate/Product%20Manual/100371155b_LD25_Sata.pdf
Productsheet: http://www.seagate.com/docs/pdf/datasheet/disc/ds_ld25.pdf
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