Hitachi J4K30, N4K30 User Manual

Endurastar™ J4K30 and N4K30

2.5-INCH HARD DISK DRIVES

Extreme hard drives for extreme environments

Highlights

30GB and 20GB capacity in a 2.5-inch

form factor

Operating temperature range from

-20° C to +85° C

Built-in shock sensor enhances data integrity

Enhanced moisture control system ensures corrosion control in extreme environments

Applications

Automotive

GPS navigation systems

Applications running in hot and humid climates

Features and Beneﬁ ts

Feature / Function Beneﬁ ts

Capacity 30GB maximum capacity * 7,500 4-minute MP3 songs, or

20GB also available * 2.7 hours of DV25 video, or

* 15 interactive games

Acoustics Fluid Dynamic Bearing (FDB) motors Quiet operation

Reliability -20° C to +85° C operating temperature Performs well in extreme temperature environments

(J4K30)

High-endurance FDB motor Supports 24x7 applications

Load/unload technology Reduces disk wear and helps protect user data

Built-in shock sensor Enhances data integrity

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

Turn up the heat

Hitachi delivers a 50-percent storage capacity increase in its line of “extreme” hard disk drives. The Endurstar and are designed speciﬁ cally to perform in extreme temperature environments. With an operating temperature range as wide as -20°C to +85°C, the new Endurastar models are built to perform in the harshest environments—from the desert heat to the Antarctic chill.

™

J4K30 and Endurastar N4K30 are both offered in capacities of up to 30GB,

Ideal for automotive applications

Endurastar hard drives are the preferred solution for automotive applications or other environments which require high robustness and wider operating temperatures than standard hard drive applications. In fact, the Endurastar J4K30 is already being used in car entertainment and navigation applications—and 30GBs of storage means users can store more than 5,000 audio ﬁ les, four hours of MPEG2 video and enough navigation data to cover the entire planet!

30 and 20GB | 4200 RPM | ATA-5

DATA SHEET

Reliability and performance

The new Endurastar models feature glass media and load/unload technology in addition to shock sensor technology which cushions the drive in less than ideal shock or vibration conditions. Endurastar drives incorporate ﬂ uid dynamic bearings (FDB) in the spindle motor, allowing the same quiet operations and improved shock characteristics as with PC models, but offers even higher reliability for automotive environments and around-the-clock applications in industrial environments. These features enable the Endurastar drives to achieve a non-operating shock tolerance of 800G/1ms and an operating shock tolerance of 250G/2ms.

www.hitachiGST.com

Endurastar™ J4K30 and N4K30

Speciﬁ cations Endurastar J4K50 Endurastar N4K50

Model(s) HEJ423030F9AT00 HEJ423020F9AT00

HEN423030F9AT00 HEN423020F9AT00

Interface ATA-5 (IDE) f

Capacity (GB) 1 30 / 20 f

Sector size (variable, Bytes/sector) 512 f

Recording zones 16 f

Data heads (physical) 2 f

Data Disks 1 f

Max. areal density (Gbits/sq. in.) 56.5 f

Performance

Data buffer (MB)

Rotational speed (RPM) 4172 f

Latency average (ms) 7.19 f

Media transfer rate (Mbits/sec, max) 361 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 10

Load/unload 300,000 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.) 0.6 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.) 107 f

Environmental (operating)

Ambient temperature -20° to 85° C 0o to 60o C

Relative humidity (non-condensing) 5% to 90% f

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

Vibration (sine wave) 1G (22-500Hz) f

Environmental (non-operating)

Ambient temperature -40° to 85° C f

Relative humidity (non-condensing) 5% to 90% f

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

Vibration (sine wave) 5G (22-500Hz) f

Acoustics (A-weighted sound power)

Idle (Bels, typ.) 2.4 f

Op (Bels, typ.) 3.0 f

8 f

bits transferred f

Hitachi quality and service

Hitachi Endurastar hard disk drives are designed to the highest quality standards and contain ﬁ eld- proven 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

How to read the Travelstar model number

HTJ423030F9AT00 = 30GB/8 MB buffer H = Hitachi E = Endurastar J = J4K50 model (N = N4K50) 42 = 4200 RPM 30 = Full capacity — 30GB 30 = Capacity this model, 30 = 30GB (20 = 20GB) 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 Paciﬁ c

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 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 ﬁ rmware. 3 Intended for less than 20 percent duty cycle industrial applications

and other non mission critical applications.

™

Program

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 speciﬁ cations provided are sample speciﬁ cations and do not constitute a warranty. Information is true as of the date of publication and is subject to change. Actual speciﬁ cations for unique part numbers may vary. Please visit the Support section of our website, www.hitachigst.com/support, for additional information on product speciﬁ cations. Photographs may show design models.

DSEJ423007EN-02

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

™

Endurastar Hitachi Global Storage Technologies.

and Partners First™ are trademarks of