WD AV-25
Western Digital, WD, and the WD logo are
registered trademarks in the U.S. and other
countries; and SilkStream and FIT Lab are
trademarks of Western Digital Technologies,
Inc. Other marks may be mentioned herein
that belong to other companies. Product
specifications subject to change without
notice.
© 2010 Western Digital Technologies, Inc.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A.
2879-771362-A02 May 2010
For service and literature:
support.wdc.com
www.westerndigital.com
800.ASK.4WDC North America
800.832.4778 Spanish
+800.6008.6008 Asia Pacific
00800.27549338 Europe
(toll free where available)
+31.880062100 Europe/Middle East/Africa
1As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576
bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 3 Gb/s transfer rate calculated according to the Serial ATA specification published by the SATA-
IO organization as of the date of this specification sheet. Visit www.sata-io.org for details.
2Maximum burst rate running the Mode 5 Ultra ATA transfer mode.
3Controlled unload at ambient condition.
4The term of the limited warranty may vary by region. Visit support.wdc.com/warranty for details.
5No non-recoverable errors during operating tests or after non-operating tests.
6Sound power level.
Specifications 500 GB 320 GB 250 GB 160 GB
Model number WD5000BUDT WD3200BUDT WD2500BUDT WD1600BUDT
Interface SATA 3 Gb/s SATA 3 Gb/s SATA 3 Gb/s SATA 3 Gb/s
Formatted capacity1500,107 MB 320,072 MB 250,059 MB 160,041 MB
User sectors per drive 976,773,168 625,142,448 488,397,168 312,581,808
Advanced Format Technology Yes Yes Yes Yes
Form factor 2.5-inch 2.5-inch 2.5-inch 2.5-inch
Performance
Data transfer rate (max)2
Buffer to host
Host to/from drive (sustained)
3 Gb/s
108 Mbytes/s
3 Gb/s
108 Mbytes/s
3 Gb/s
108 Mbytes/s
3 Gb/s
108 Mbytes/s
Cache (MB) 32 32 32 32
Average latency (ms) 5.5 5.5 5.5 5.5
Rotational speed (RPM) 5400 5400 5400 5400
Averagedrivereadytime(sec)4444
Reliability/Data Integrity
Load/unload cycles3600,000 600,000 600,000 600,000
Non-recoverable read errors
per bits read
<1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014
Limited warranty (years)43333
Power Management
5VDC ±10% (A, peak) 0.950 0.950 0.950 0.950
Average power requirements (W)
Read/Write
Idle
Standby/Sleep
1.6
0.65
0.20
1.6
0.85
0.20
1.6
0.85
0.20
1.6
0.85
0.20
Environmental Specifications5
Temperature (°C)
Operating
Non-operating
0 to 60
-40 to 65
0 to 60
-40 to 65
0 to 60
-40 to 65
0 to 60
-40 to 65
Shock (Gs)
Operating (2 ms, read)
Non-operating (2 ms)
350
1000
350
1000
350
1000
350
1000
Average acoustics (dBA)6
Idle mode
Average seek mode
22
25
22
25
22
25
22
25
Physical Dimensions
Height (in./mm, max)80.374/9.50 0.374/9.50 0.374/9.50 0.374/9.50
Length (in./mm, max) 3.94/100.20 3.94/100.20 3.94/100.20 3.94/100.20
Width (in./mm, ± .01 in.) 2.75/69.85 2.75/69.85 2.75/69.85 2.75/69.85
Weight (lb./kg, ± 10%) 0.22/0.10 0.22/0.10 0.22/0.10 0.22/0.10
