ST39204LC |
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Technical Specifications |
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Description |
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Model number |
ST39204LC |
Model Name |
Cheetah 18XL |
Form Factor(width) |
3.5" |
Form Factor(height) |
low-profile |
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Physical Specifications |
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Height |
26.137 mm |
Width |
101.98 mm |
Length |
146.68 mm |
Weight |
0.68 kg |
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Capacity/Interface |
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Formatted Capacity |
9.2 Gbytes, formatted |
Interface Type |
80-pin |
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Performance |
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Transfer Rates |
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Internal Transfer Rate (min) |
285 Mbits/sec |
Internal Transfer Rate (max) |
424 Mbits/sec |
Formatted Int Transfer Rate (min) |
26 Mbits/sec |
Formatted Int Transfer Rate (max) |
40 Mbits/sec |
External (I/O) Transfer Rate (max) |
160 MBytes/sec |
Avg Formatted Transfer Rate |
33 MBytes/sec |
Seek Times |
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Average Seek Time, Read |
5.2 msec typical |
Average Seek Time, Write |
5.8 msec typical |
Track-to-Track Seek, Read |
0.6 msec typical |
Track-to-Track Seek, Write |
0.9 msec typical |
Full Disc Seek, Read |
1 msec typical |
Full Disc Seek, Write |
11 msec typical |
Average Latency |
2.99 msec |
Other |
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Default Buffer (cache) Size |
4,096 Kbytes |
Spindle Speed |
10033 RPM |
Spinup Time |
20 sec |
Power-on to Ready Time |
20 sec |
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Configuration |
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Number of Discs (physical) |
2 |
Number of Heads (physical) |
3 |
Total Cylinders |
14,384 |
Total Tracks |
43,152 |
Bytes Per Sector |
512 |
Areal Density (Mbits/sq in) |
6,151 Mbits/square inch |
Track Density (TPI) |
18,145 tracks/inch |
Recording Density (BPI, max) |
339,000 bits/inch |
Sectors/Track (avg) |
396 |
Bytes/Track (avg) |
203,008 |
Recording Components |
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Recording Method |
NPV |
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Electrical Requirements |
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Current |
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Typical Current (12VDC +/- 5%) |
0.75 amps |
Startup Current (12VDC +/- 5%) |
0.8 amps |
Typical Current (5VDC +/- 5%) |
0.8 amps |
Startup Current (5VDC +/- 5%) |
0.8 amps |
Power |
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Idle Power (typ) |
7 watts |
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Environmental Specifications |
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Shock and Vibration |
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Max Operating Shock (11-msec) |
15 Gs |
Max Nonoperating Shock (11-msec) |
150 Gs |
Operating Vibration (max) |
1.1 Gs |
Nonoperating Vibration (max) |
2.5 Gs |
Temperature and Humidity |
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Operating Temperature (max) |
55 deg C |
Operating Temperature (min) |
5 deg C |
Nonoperating Temperature (max) |
70 deg C |
Nonoperating Temperature (min) |
-40 deg C |
Operating Temperature Change (max) |
20 deg C/hr |
Nonoperating Temperature Change (max) |
20 deg C/hr |
Operating Humidity (max) |
95 percent |
Nonoperating Humidity (max) |
95 percent |
Operating Humidity Change (max) |
10 percent per hour |
Operating Wet Bulb Temp (max) |
28 deg C |
Altitude |
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Operating Altitude (max) |
3,000 m |
Operating Altitude (min) |
-300 m |
Nonoperating Altitude (max) |
12,200 m |
Nonoperating Altitude (min) |
-300 m |
Acoustics |
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Acoustics, Idle (sound power, typ) |
3.8 Bels |
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Reliability |
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MTBF (Hours) |
1,200,000 hours |
Recoverable Read Errors |
10 per 1011 bits read |
Nonrecoverable Read Errors |
1 per 1016 bits read |
Seek Errors |
1 per 108 bits read |
Supports S.M.A.R.T. |
Yes |