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Western Digital WD2500AAJB CAVIAR SE/ 250GB/ 7200RPM/ 8MB/ PATA100
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Product Features |
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| Product ID |
26207 |
| Brand |
Western Digital |
| Vendor Code | WD2500AAJB |
| Description |
Physical Specifications
Model Number WD2500AABB, WD2500AAJB, WD2500AAKB
Formatted Capacity 1 250,059 MB
Used Sectors Per Drive 448,397,168
Interface 40-pin EIDE
Bytes Per Sector 512
Dedicated Landing Zone Yes
Actuator Latch/Auto Park Yes
1 Western Digital defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB)
as 1,000,000,000 bytes
Performance Specifications
Data Transfer Rate (maximum)
- Buffer to Host
- Buffer to Disk 100 MB/s max (Mode 5 Ultra ATA)2
972 Mbits/s max
Average Read Seek 8.9 ms (average)
Track-to-track Seek3 2.0 ms (average)
Full Stroke Read Seek3 21 ms (average)
Average Latency 4.2 ms
Rotational Speed 7200 RPM
Read Cache Adaptive
Write Cache Yes
Buffer
- WDxxxxAABB
- WDxxxxAAJB
- WDxxxxAAKB
2 MB
8 MB
16 MB
Drive Ready Time 9.0 sec average
Start/Stop Cycles 50,000 min
Error Rate
(non-recoverable) <1 in 1014 bits read
LBA support Yes
2Maximum burst rate running the specified PIO, DMA, Ultra ATA, or Serial ATA
transfer mode.
3 On reads and writes.
Physical Dimensions
Height 1.028 in. (25.4 mm) max
Length 5.787 in. (147.0 mm) max
Width 4.0 in. (101.6 mm) ± .01 in.
Weight 1.30 lb. (0.59 kg) ± 10%
Power Requirements4
Mode 12 V (± 10%) 5 V (± 5%) Power
Read/Write4 410 mA 675 mA 8.30 W
Idle 390 mA 600 mA 7.70 W
Standby 6 mA 180 mA 0.97 W
Sleep 6 mA 180 mA 0.97 W
Spinup 1.4 A 490 mA 19.2 W
420% duty cycle.
Environmental Specifications5
Shock
Operating (2ms) 65G
Non-operating (2ms) 350G (2ms)
Half sine wave measured in 2 ms duration, measured without isolation.
Vibration
Operating - Random 0.004 g2/Hz (10 to 300 Hz)
- Linear 20-300 Hz, 0.75G (0 to peak)
Non-operating - Linear 5-20 Hz, 0.195 inches (dbl amp)
20-500 Hz, 4G (0 to peak)
Operating Temperature and Humidity
Temperature 0°C to 60°C (32°F to 140°F)
Humidity 5-95% RH non-condensing
Thermal Gradient 20°C/hour (maximum)
Non-Operating Temperature and Humidity
Temperature -40°C to 65°C (-40°F to 149°F)
Humidity 5-95% RH non-condensing
Thermal Gradient 30°C/hour (maximum)
Acoustics (average)
Idle Mode6 25 dBA
Seek Mode 06 29 dBA
Seek Mode 36 26 dBA
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| Warranty | 1 Year Manufacturer's return to base | | Link | Western Digital WD2500AAJB CAVIAR SE/ 250GB/ 7200RPM/ 8MB/ PATA100 |
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