Hitachi HEJ425050F9AT00, HEN425050F9AT00, HEJ425040F9AT00, HEN425040F9AT00, HEJ425030F9AT00 DATASHEET

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Endurastar™ J4K50 and N4K50

2.5-INCH HARD DISK DRIVES

Industrial strength drives built for extreme environments

Highlights

Highest capacity Automotive HDD at 50GB; > 67% more than prior model Expanded operating temperature range > from -30° C to +85° C Highest operating altitude range of up > to 5000 meters 4th generation product, based on > proven technology

Applications

Automotive > GPS navigation systems > Applications running in hot and > humid climates Industrial applications >

50, 40 and 30GB | 4200 RPM | ATA-6

Features and Beneﬁts

Feature / Function Benefits

Capacity 50GB maximum capacity * 12,500 4-minute MP3 songs, or 40GB and 30GB also available * 17 movies * 50 interactive games

Acoustics Fluid Dynamic Bearing (FDB) motors Quiet operation

Reliability -30° C to +85° C operating temperature Performs well in extreme temperature environments

-300m to +5,000m altitude on J4K50

High-endurance FDB motor Supports 24x7 applications

Shock sensor technology Cushions the drive in poor shock or vibration conditions

Thermal Fly-height Control (TFC) Improved soft error rate and performance

*Actual storage may vary depending on the compression rate applied.

Built like a tank

Hitachi is first to deliver a 50GB per platter Endurastar hard drive for use in extreme environments. The Endurastar J4K50 and N4K50 are offered in capacities of 30 to 50GB. Along with the increased capacity, comes a wider temperature range and improved altitude range. Endurastar J4K50 is designed to operate in the most severe conditions, at temperatures of -30°C to +85°C and altitudes of -300 to +5000 meters.Endurastar N4K50 offers a temperature range of

-16°C to +70°C at altitudes of -300 to 3000 meters. The new Endurastar models continue to leverage shock sensor technology for enhanced reliability and the proven technology of Hitachi HDDs for notebook PCs to deliver quiet acoustics and excellent performance. Hitachi Endurastar drives are designed to guard and deliver your data under the harshest environmental conditions.

Made for the road

Hitachi Endurastar hard drives deliver the one-two punch of operating at the highest altitude and the most extreme temperatures. These drives are designed to meet the rigors of the automotive environment, including traditional navigation, telematics, in-car entertainment and vehicle relational management. This time-proven design supports around-the-clock applications in industrial environments.

The implementation of TFC, which enables direct control of the read/write element using heat, provides more consistent spacing between the read/write element and the media, thereby improving robustness and performance. These new Endurastar models are preferred for applications in the most radical environments ranging from desert heat to Antartic chill.

DATA SHEET

www.hitachiGST.com

Endurastar™ J4K50 and N4K50

Speciﬁcations Endurastar J4K50 Endurastar N4K50

Model(s) HEJ425050F9AT00 HEN425050F9AT00

HEJ425040F9AT00 HEN425040F9AT00 HEJ425030F9AT00 HEN425030F9AT00

Interface ATA-6 f

Capacity (GB) 1 50 / 40 / 30 f

Sector size (variable, Bytes/sector) 512 f

Recording zones 24 f

Data heads (physical) 2 f

Data Disks 1 f

Max. areal density (Gbits/sq. in.) 86.1 f

Performance

Data buffer (MB) 2 8 f

Rotational speed (RPM) 4260 f

Latency average (ms) 7.04 f

Media transfer rate (Mbits/sec, max) 388 f

Interface transfer rate (MB/sec, max) 100 Ultra DMA mode-5 f

16.6 PIO mode-4

Seek time (read, typical) (avg. ms) 13 f

Maximum (typical, ms) 24 f

Minimum (typical, ms) 3 f

Reliability

Error rate (non-recoverable) < 1 per 1013 bits transferred f

Load/unload 600,000 f

Availability 3 (hrs/day x days/wk) 24x7 f

Power

Requirement +5 VDC (+/-5%) f

Startup (W, peak, max.) 6.5 f

Read / Write (W, avg.) 2.15 f

Low power idle (W, avg.) 0.8 f

Standby (W, avg.) 0.15 f

Sleep (W) 0.1 f

Physical size

z-height (mm) 9.5 f

Dimensions (width x depth, mm) 70 x 100 f

Weight (g, typ.) 95 f

Environmental (operating)

Ambient temperature -30° to 85° C -16o to 70o C

Altitude (m) -300 to 5,000 -300 to 3,000

Shock (half-sine wave) 250G (2ms) f

Vibration (sine wave) Up to 3G (10-500Hz) f

Environmental (non-operating)

Ambient temperature -40° to 95° C f

Altitude (m) -300 to 15,000 f

Shock (half-sine wave) 800G (1ms) f

Vibration (sine wave) Up to 5G (10-500Hz) f

Acoustics (A-weighted sound power)

Idle (Bels, typ.) 2.4 f

Op (Bels, typ.) 3.0 f

Hitachi Global Storage Technologies’ trademarks are authorized for use in countries and jurisdictions in which Hitachi Global Storage Technologies has the right to use, market and advertise the brands. Contact Hitachi Global Storage Technologies for further information. Hitachi Global Storage Technologies shall not be liable to third parties for unauthorized use of Hitachi Global Storage Technologies trademarks..

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 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.hitachigst.com/support, for additional information on product specifications. Photographs may show design models.

Hitachi quality and service

Hitachi Endurastar hard disk drives are designed to the highest quality standards and contain fieldproven components. Hitachi provides worldwide technical support and integration services to enable global customers to bring their products to market quickly.

Hitachi drives are backed by an array of technical support and services, which may include customer and integration assistance. Hitachi is dedicated to providing a breadth of hard disk drive solutions to satisfy all of today’s demanding computing needs.

How to read the Travelstar model number

HTJ425050F9AT00 = 50 GB/8 MB buffer H = Hitachi E = Endurastar J = J4K50 model (N = N4K50) 42 = 4200 RPM 50 = Full capacity — 50 GB 50 = Capacity this model, 50 = 50 GB (40 = 40 GB, 30 = 30 GB) F = Generation code 9 = 9.5mm z-height AT = ATA interface 0 = Feature code 0 = Reserved

Information and Technical Support

www.hitachigst.com (Main Web site) www.hitachigst.com/partners (Partner Web site)

North America

support_usa@hitachigst.com Toll free: 1 888 426-5214, Direct: 1 507 322-2370

Asia Pacific

support_ap@hitachigst.com / 65 6840 9595

EMEA and UK

support_uk@hitachigst.com / 44 20 7133 0032

Germany

support_uk@hitachigst.com / 49 6929 993601

Program Support

Partners First™ Program channelpartners@hitachigst.com

1 One GB is equal to one billion bytes when referring to hard drive

capacity. Accessible capacity may be less. 2 Portion of buffer capacity used for drive firmware. 3 Intended for less than 20 percent duty cycle industrial applications

and other non mission critical applications.

Hitachi Global Storage Technologies 3403 Yerba Buena Road San Jose, CA 95135 USA

Endurastar™ and Partners First™ are trademarks of Hitachi Global Storage Technologies.

DSEJ425007EN-03