| Endurastar J4K20 and N4K20 models |
Capacity (GB) |
RPM |
Interface |
|
| HTA422020F9ATJ0 |
|
| HTA422020F9ATN0 |
|
| |
|
|
| Configuration |
HTA422020F9ATJ0 |
HTA422020F9ATN0 |
| Interface |
ATA-5 |
ATA-5 |
| Capacity (GB)1 |
20 |
20 |
| Sector size (bytes) |
512 |
512 |
| Data heads |
2 |
2 |
| Disks |
1 |
1 |
| Max. areal density (Gbits/sq.inch) |
37.7 |
37.7 |
| |
|
|
| Performance |
HTA422020F9ATJ0 |
HTA422020F9ATN0 |
| Data buffer (MB)2 |
8 |
8 |
| Rotational speed (rpm) |
4172 |
4172 |
| Latency (average ms) |
7.2 |
7.2 |
| Max.media transfer rate (MB/sec) |
31.4 |
| Max. interface transfer rate (MB/sec) |
100MB/sec Ultra DMA mode-5 |
| Seek time (ms) |
|
|
| Average (typical) |
13 |
13 |
| Maximum (typical) |
24 |
24 |
| Minimum (typical) |
3 |
3 |
| |
|
|
| Reliability |
|
|
| Error rate (non-recoverable) |
< 1 per 1013 bits
transferred |
< 1 per 1013 bits transferred |
| Load/unload cycle |
300,000 |
300,000 |
| |
|
|
| Power |
|
|
| Requirement |
+5VDC(±5%) |
+5VDC(±5%) |
| Startup (max. peak) |
6.5 W |
6.5 W |
| Seek (average) |
2.4 W |
2.4 W |
| Read (average) |
2.15 W |
2.15 W |
| Write (average) |
2.15 W |
2.15 W |
| Performance idle (average) |
1.8 W |
1.8 W |
| Active idle (average) |
0.80 W |
0.80 W |
| Low power idle (average) |
0.60 W |
0.60 W |
| Standby (average) |
0.15 W |
0.15 W |
| Standby (average) |
0.1 W |
0.1 W |
| |
|
|
| Physical size |
|
|
| Height (mm) |
9.5 |
| Width (mm) |
70 |
|
| Depth (mm) |
100 |
|
| Weight (g) |
107 |
|
| |
|
|
| Environmental characteristics |
|
|
| Operating |
|
|
| Ambient temperature |
-20° to 85° C |
0° to 60° C |
| Relative humidity (non-condensing) |
5% - 90% |
5% - 90% |
| Maximum wet bulb (non-condensing) |
40° C |
40° C |
| Shock (half sine wave) |
100G/11ms |
100G/11ms |
| Vibration (sine wave) |
1.0 G (22 - 500Hz) |
1.0 G (22 - 500Hz) |
| |
|
|
| Non-operating |
|
|
| |
|
|
| Ambient temp |
-40° to 85° C |
| Relative humidity (non-condensing) |
5% - 95% |
5% - 95% |
| Maximum wet bulb (non-condensing) |
40° C (104° F) |
40° C (104° F) |
| Shock (half sine wave) |
800G/1ms |
800G/1ms |
| |
1,200G/1ms (1 disk) |
|
| Vibration (sine wave) |
5.0G (22 - 500Hz) |
5.0G (22 - 500Hz) |
| |
|
|
| Acoustics (A-Weighted Sound
Power (Bels) |
|
| Idle (typical) |
2.4 |
2.4 |
| Seek (typical) |
3.0 |
3.0 |
