Western Digital Endurastar Series Data Sheet

Endurastar® J4K320
Highlights
•• Industry-leading 320GB1 capacity
optimized for automotive
applications
•• High operating altitude range of
up to 5500 meters
•• Wide operating temperature range
from -30ºC to +85ºC
•• 6th generation product, based on
proven technology
•• SATA interface
Applications/
Environments
•• Automotive
•• GPS navigation systems
DATA SHEET
2.5-INCH AUTOMOTIVE 4200 RPM HARD DISK DRIVES
Large Capacity, Robust Features for Extreme Environments
HGST delivers an industry-leading 320GB capacity in its latest Endurastar® line of 2.5inch hard drives designed especially for extreme environments. The Endurstar J4K320
models provide up to three times the capacity of their predecessors and are built to
operate at altitudes of up to 5500 meters. The Endurastar J4K320 is designed for the
most severe conditions, with an operating temperature range of -30ºC to +85ºC. The
drives are offered in a SATA 1.5Gb/s interface and leverage Advanced Format, which
increases the physical sector size on hard drives from 512 bytes to 4096 (4K) bytes to
increase drive capacities and improve error correction capabilities. Consult the HGST
Advanced Format Technology Brief for more information on using these hard drives.
Right Choice for the Road
Endurastar hard drives are built to meet the rigors of the automotive environment and
are ideal to support automotive applications including navigation, telematics, in-car
entertainment and vehicle relational management. Leveraging a proven 6th generation
platform, the Endurastar J4K320 delivers the right blend of capacity and performance
to meet the needs of extreme conditions found in automotive environments.
•• Surveillance applications
•• Industrial applications
Rugged, Durable Design
These new Endurastar drives leverage time-proven technologies pioneered on HGST
hard drives for notebook PCs to deliver quiet acoustics and robust performance.
FDB motors provide quiet operation, and Thermal Fly-height Control (TFC) enhances
reliability by maintaining more consistent spacing between the read/write head and
the disk and compensates for variations caused by altitude and temperature changes.
Perpendicular magnetic recording (PMR) technology on Endurastar J4K320 delivers
excellent soft error rates for improved reliability and performance under even the
harshest environmental conditions. All models come standard with proven shock
sensor technology and enhanced humidity absorption for superior reliability.
Features and Benefits
320GB, 250GB, 200GB, 100GB and 80GB
4200 RPM | SATA 1.5Gb/s
Feature / Function
Benefits
Capacity
320GB maximum capacity
Up to 80 hours of high-definition video, 320 hours of
standard video, 114 movies, 80,000 4-min songs or 160
games (2GB per game) *
Acoustics
Fluid Dynamic Bearing (FDB) motors
Quiet operation
Reliability
• -30° C to +85° C operating temperature
• Shock sensor technology
• Perpendicular Magnetic Recording
(PMR) technology with Thermal Flyheight Control (TFC)
•
•
•
•
Interface
SATA 1.5Gb/s
Design configuration flexibility
Performs well in extreme temperature environments
Cushions the drive in poor shock or vibration conditions
Improved soft error rate and performance
Wide operating range for temperature and altitude
* Actual storage may vary depending on the compression rate applied. Capacities may not be combined.
Endurastar® J4K320
DATA SHEET
Specifications
Models
2.5-INCH AUTOMOTIVE 4200 RPM
HGST Quality and Service
HEJ423232H9E300
HEJ423220H9E300
HEJ423280H9E300
HEJ423225H9E300
HEJ423210H9E300
Configuration
Interface
SATA 1.5Gb/s
Capacity (GB)1
320 / 250 / 200 / 100 / 80
Sector size (bytes)
512e
Recording zones
31
Data heads (physical)
2
Disks
1
Areal density (max, Gbit/sq.in)
425
Performance
Data buffer (MB)2
8
Rotational speed (RPM)
4260
Latency average (ms)
7.04
Media transfer rate (max, Mbits/s)
750
Interface transfer rate (MB/s)
150
Seek time, read (ms, typical)
13
Reliability
Error rate (non-recoverable)
< 1 per 10 14 bits transferred
Load/Unload cycle
600,000
Availability (hrs/day x days/wk) 3
24x7
Power
Requirement
+5 VDC (+/-5%)
Startup (W, peak, max) 4
4.5
Read/Write (W, average)
1.7
Low power idle (W, average)
0.8
Standby (W, average)
0.2
Sleep (W)
0.14
Physical size
Height (max, mm)
9.5
Dimensions (width x depth, mm)
69.85 x 100.2
Weight (max, g)
97
Environmental (operating)
Ambient temperature
-30° to 85° C
Altitude (m)
-450 to 5,500
Shock (half-sine wave)
300G (2ms)
Vibration (sine-wave)
Up to 3G (10-500Hz)
Environmental (non-operating)
Ambient temperature
-40° to 95° C
Altitude (m)
-450 to 15,000
Shock (half-sine wave)
800G (1ms)
Vibration (sine-wave)
Up to 5G (10-500Hz)
HGST Endurastar hard disk drives
are designed to the highest quality
standards and contain field-proven
components. HGST provides worldwide
technical support and integration
services to enable global customers to
bring their products to market quickly.
HGST drives are backed by an array of
technical support and services, which
may include customer and integration
assistance. HGST is dedicated to
providing a breadth of hard disk
drive solutions to satisfy all of today’s
demanding computing needs.
How to read the Edurastar model number
HEJ423232H9E300 = 320GB, SATA 1.5Gb/s
interface
H = HGST
E = Endurastar
J = J4K320
42 = 4200 RPM
32 = Full capacity — 320GB
32 = Capacity this model, 320 = 320GB
(25 = 250GB, 20 = 200GB,
10 = 100GB, 80 = 80GB)
H = Generation code
9 = 9.5mm z-height
E3 = Interface, SATA 1.5Gb/s with 512 emulation
0 = Feature code
0 = Reserved
1
One GB is equal to one billion bytes when referring
to hard drive capacity. Accessible capacity will
vary depending on the operating environment and
formatting.
2
Portion of buffer used for firmware.
3
Intended for less than 20% duty cycle industrial
applications and other non-mission critical applications
at operational temperature 5ºC to 55ºC. Service life of
the drive is approximately 5 years or 15,000 power-on
hours, which ever comes first.
4
Power requirements shown apply to average operating
temperatures. For power requirements at low
temperatures, see OEM specification at
www.hgst.com/support.
Acoustics (A-weighted sound power)
Idle (Bels, typical)
2.4
Operating (Bels, typical)
3.0
© 2016 HGST, Inc., 3403 Yerba Buena Road, San Jose, CA 95135 USA. Produced in the United States 5/12, revised 2/16. All rights reserved.
Endurastar is a registered trademark of HGST, Inc. and its affiliates in the United States and/or other countries. HGST trademarks are intended and
authorized for use only in countries and jurisdictions in which HGST has obtained the rights to use, market and advertise the brand. Contact HGST
for additional information. HGST shall not be liable to third parties for unauthorized use of this document or unauthorized use of its trademarks.
References in this publication to HGST’s products, programs, or services do not imply that HGST intends to make these available in all countries in
which it operates. Product specifications provided are sample specifications and do not constitute a warranty. Information is true as of the date of
publication and is subject to change. Actual specifications for unique part numbers may vary. Please visit the Support section of our website,
www.hgst.com/support, for additional information on product specifications. Photographs may show design models.
Information & Technical Support
www.hgst.com
www.hgst.com/support
Partners First Program
[email protected]
www.hgst.com/partners
DSEJ4K320EN-03

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