Hitachi Global Storage Technologies
1GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2Buffer capacity includes 270 or less KB used for drive firmware.
3Does not include command overhead
4Low duty cycle, non mission-critical applications in PC, nearline and consumer electronics customer environments
are different from application to application .
5 RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in
electrical and electronic equipment.
Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
For specific application environment reliability rates, please consult Hitachi technical support.
© 2006 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135
Produced in the United States 3/06
All rights reserved.
Deskstar® is a trademark of Hitachi Global Storage Technologies.
References in this publication to Hitachi Global Storage
Technologies products, programs or services, do not imply that
Hitachi Global Storage Technologies intends to make these
available in all countries in which it operates.
Product information is provided for information purposes only,
and does not constitute a warranty. Information is true as of
the date of publication and is subject to change. Actual results
may vary. This publication is for general guidance only. Photo-
graphs may show design models.
How to Read the Deskstar Model Number
Example:
HDT725050VLA360 = 500GB/16MB
H= Hitachi
D= Deskstar
T= Two- or three-disk
72 = 7200 RPM
50 = full capacity = 500GB
50 = model capacity = 500GB
(40 = 400GB, 32 = 320GB, 25 = 250GB)
V= generation code
L= 1-inch form factor
A3 = SATA 3.0 Gb/s (AT = Parallel ATA)
6= 16 buffer (8 = 8M buffer)
0= Reserved
For more information:
Internet:
>www.hitachigst.com (Main Web site)
>www.hitachigst.com/vpp (Reseller Web site)
Technical Support E-mail:
Technical Support Phone Numbers:
>1 888 426-5214 (N. America)
>65 6840 9595 (Asia Pacific)
>44 20 7133 0032 (EMEA and UK)
>49 6929 993601 (Germany Support)
Hitachi Deskstar® T7K500
Product Deskstar T7K500 Deskstar T7K500
Model numbers HDT725050VLAT80 HDT725050VLA360
HDT725040VLAT80 HDT725050VLA380
HDT725032VLAT80 HDT725040VLA360
HDT725025VLAT80 HDT725040VLA380
HDT725032VLA360
HDT725032VLA380
HDT725025VLA360
HDT725025VLA380
Specifications
Configuration Parallel-ATA Serial-ATA
Interface PATA-133 SATA 3.0Gb/s
Capacity (GB) 1500 / 400 / 320 / 250
Data heads (physical) 6 / 6 / 4 / 4
Data disks 3 / 3 / 2 / 2
Performance
Data buffer 28 MB 16 MB / 8 MB
Rotational speed (rpm) 7,200
Media transfer rate (max. Mbits/sec) 998
Interface transfer rate (max. MB/sec) 133 300
Average seek time (ms) (read, typical) 3 8.5
Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50,000
Availability 424x7
Acoustic
Idle (Bels, typical) 3.0 (3 disk) 2.8 (2 disk)
Power
Requirement +5 VDC (+/- 5%)
+12 VDC (+10 %/-8%)
Dissipation
Startup current (max. A) 2.0 (+12V) &1.1 (+5V) 2.0 (+12V) &1.3 (+5V)
Idle (W) 6.0 (3 disk) 5.0 (2 disk) 7.0 (3 disk) 6.0 (2 disk)
Physical Size
Height (max. mm) 26.1
Width (mm) 101.6
Depth (mm) 147
Weight (max. g) 640
Environmental characteristics
Operating
Ambient temperature (C) 0° to 60°
Relative humidity (non-condensing) 8% to 90%
Shock (half sine wave, 2ms) (G) 70
Vibration (random (RMS)) (G) 0.67 for horizontal
0.67 for vertical
Non-operating
Ambient temperature (C) -40° to 65°
Relative humidity (non-condensing) 5% to 95%
Shock (half sine wave, 2ms) (G) 300 (3 disk) 350 (2 disk)
Vibration (random (RMS)) (G) 1.04 rms (XYZ)
RoHS compliant 5Yes
