| Specifications |
40GB |
| Model Number |
ST940813AM |
| Interface |
Ultra ATA/100 |
| Cache |
8 MBytes |
| Capacity |
40GB |
| Guaranteed Sectors |
78,140,160 |
| Number of pins on the I/O connector |
44 |
| PHYSICAL |
|
| Height (max) |
9.5 mm (0.374 inches) |
| Width (max) |
69.85 mm (2.750 inches) |
| Length (max) |
100.2 mm (3.945 inches) |
| Weight (typical) |
100 grams (0.22 pounds) |
| COMPLIANCE |
|
| European Union Restriction of Hazardous Substances |
Y |
| PERFORMANCE |
|
| Spindle Speed |
5,400 rpm |
| Average latency |
5.6 msec |
| Random read seek time |
12.5 msec |
| Random write seek time |
14.5 msec |
| RELIABILITY |
|
| MTBF |
550,000 hours |
| Power-on hours |
8,760 hours |
| Unrecoverable read errors |
1 in 10^14 |
| POWER |
|
| 5V start max current |
1.5 amps |
| Average idle current |
0.34 watts |
| Average seek power |
1.90 watts |
| Standby power |
0.26 watts |
| 5V Standby power |
0.26 amps |
| Sleep power |
0.267 watts |
| 5V Sleep power |
0.26 amps |
| Maximum start current, DC |
1.5 amps |
| Maximum operating current, DC |
1.70 amps |
| ENVIRONMENT |
|
| Ambient Temperature |
|
| Operating |
-30 to 85 degrees C |
| Nonoperating |
-40 to 95 degrees C |
| Maximum operating temperature change |
3 degrees C per hour |
| Maximum nonoperating temperature change |
3 degrees C per hour |
| Relative Humidity |
|
| Operating |
5 to 95 |
| Nonoperating |
5 to 95 |
| Maximum allowable humidity change |
30% per hour |
| Altitude |
|
| Operating altitude (min) |
-304.8 meters (-1,000 feet) |
| Operating altitude (max) |
4,419.6 meters (14,500 feet) |
| Nonoperating altitude (min) |
-304.8 meters (-1,000 feet) |
| Nonoperating altitude (max) |
12,192 meters (40,000 feet) |
| Shock |
|
| Operating Shock (max) |
200 Gs at 2 msec |
| Nonoperating Shock (max) |
800 Gs at 1 msec |
| Vibration |
|
| Operating vibration |
1.0 Gs at10 to 500 Hz |
| Nonoperating vibration |
5.0 Gs at 5 to 500 Hz |
| ACOUSTICS |
|
| Acoustics (Idle Volume) |
2.3 bels |