20GB Hitachi Travelstar 1.8" HTC424020F7AT00 MINI Hard Drive
20GB Hitachi Travelstar 1.8" HTC424020F7AT00 MINI Hard Drive
Travelstar C4K40 hard disk drives specifications
Travelstar C4K40 models Capacity (GB) RPM Interface
40 4,200 ATA-5
HTC424020F7AT00
20 4,200 ATA-5
Configuration
Interface ATA-5
Capacity (GB) 40/20
Sector size (bytes) 512
Number of cylinders 38,957
Data heads 4/2
Disks 2/1
Performance
Data buffer (MB)1 2
Rotational speed (rpm) 4,200
Latency (average ms) 7.1
Max. interface transfer rate (MB/sec) 100MB/sec Ultra DMA mode-5
16.6MB/sec PIO mode-4
Multiword DMA mode-2
Seek time (ms)
1 track (typical) 3
Average (typical) 15
Full stroke (typical) 26
Read technology ME2PRML, ID-less format
Internal transfer rate (MB/s) 16.8-29.9
Recording density (Max. Mbpm) 29.3
Track density (Mtpm) 3.54
Reliability
Error rate (non-recoverable) < 1 per 1013 bits transferred
Preventative maintenance Not required
Power
Requirement 3.3VDC(5%) 5VDC(5%)
Seek (average) 1.122 W 1.7 W
Spin up (average) 1.485 W 2.25 W
Active idle (average) 0.33W 0.5W
Write (average) 1.555 W 1.75W
Sleep 0.066W 0.1W
Standby (average) 0.099 W 0.15W
Physical size
Height (mm) 9.5 (2 disk) / 7.0 (1 disk)
Width (mm) 70
Depth (mm) 60
Weight (g) 62 (2 disk) / 47 (1 disk)
Environmental characteristics
Operating
Ambient temperature 5 to 55 C (5V) / 5 to 60 C (3.3V)
Relative humidity (non-condensing) 5% - 90%
Maximum wet bulb (non-condensing) 29.4 C (84.2 F)
Shock (half sine wave) 300G/2ms
Vibration (sine wave) 1G (22-500Hz)
Non-operating
Ambient temp -40 to 70 C (-40 to 158 F)
Relative humidity (non-condensing) 5% - 95%
Maximum wet bulb (non-condensing) 40 C (104 F)
Shock (half sine wave) 1,000G/1ms (2 disk)
1,200G/1ms (1 disk)
Vibration (sine wave) 5G (22-500Hz)
Acoustics (A-Weighted Sound Power (Bels)
Idle (typical) 2.0 (2 disk)
1.8 (1 disk)
Seek (typical) 2.6 (2 disk)
2.5 (1 disk)
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