User manual HITACHI ENDURASTAR J4K20 DATASHEET

[. . . ] The industry's first and only hard drives built to perform in extreme temperature environments Hitachi Endurastar J4K20 and N4K20 2. 5-inch hard disk drives Highlights 20GB capacity Operating temperature range from -20° C to +85° C Fly height compensation accommodates changes in air density caused by temperature and altitude Built-in shock sensor enhances data integrity in automotive applications Enhanced moisture control system ensures corrosion control in extreme environments Practical Innovation Hitachi presents a 2. 5-inch hard disk drive designed specifically to perform in extreme temperature environments. [. . . ] These features enable the Endurastar drives to employ a non-operating shock tolerance of 800G/1ms, and an operating shock tolerance of 100G/11ms. Hitachi Endurastar J4K20 and N4K20 hard disk drive specifications Product name Model number Endurastar J4K20 HTA422020F9ATJ0 Endurastar N4K20 HTA422020F9ATN0 Configuration Interface Capacity (GB)1 Sector size (bytes) Recording zones Data heads Disks Max. areal density (Gbits/sq. inch) ATA-5 20 512 16 2 1 37 . 7 ATA-5 20 512 16 2 1 37 . 7 Hitachi Global Storage Technologies Performance Data buffer (MB)2 Rotational speed (rpm) Latency (average ms) Max. interface transfer rate (MB/sec) Seek time (ms) Average (typical) Maximum (typical) Minimum (typical) 8 4172 7 . 2 31. 4 100MB/sec Ultra DMA mode-5 13 24 3 8 4172 7 . 2 31. 4 100MB/sec Ultra DMA mode-5 13 24 3 For more information Internet and e-mail: · www. hgst. com · N. America: support_usa@hgst. com · EMEA: support_uk@hgst. com · Asia Pacific: support_ap@hgst. com Hitachi hard drive product information: · US: 1 888 426-5214 · For a complete list of worldwide phone numbers, visit www. hgst. com/support Reliability Error rate (non-recoverable) Load/unload cycle < 1 per 1013 bits transferred 300, 000 < 1 per 1013 bits transferred 300, 000 Power (@ 25° C) Requirement Startup (max. peak) Seek (average) Read (average) Write (average) Performance idle (average) Active idle (average) Low power idle (average) Standby (average) Sleep +5VDC(±5%) 6. 5 W 2. 4 W 2. 15 W 2. 15 W 1. 8 W 0. 80 W 0. 60 W 0. 15 W 0. 1 W +5VDC(±5%) 6. 5 W 2. 4 W 2. 15 W 2. 15 W 1. 8 W 0. 80 W 0. 60 W 0. 15 W 0. 1 W © Copyright Hitachi Global Storage Technologies 2003 9. 5 70 100 107 9. 5 70 100 107 Hitachi Global Storage Technologies 5600 Cottle Road San Jose, CA 95193 Produced in the United States 9/03 All rights reserved -20° to 85° C 5% - 90% 40° C 100G/11ms 1. 0 G (22 - 500Hz) 0° to 60° C 5% - 90% 40° C 100G/11ms 1. 0 G (22 - 500Hz) TravelstarTM is a trademark of Hitachi Global Storage Technologies. Other product names are trademarks or registered trademarks of their respective companies. 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 Hitachi Global Storage Technologies operates. Product information is provided for information purposes only and does not constitute a warranty. [. . . ] Photographs may show design models. Physical size Height (mm) Width (mm) Depth (mm) Weight (g) Environmental characteristics Operating Ambient temperature Relative humidity (non-condensing) Maximum wet bulb (non-condensing) Shock (half sine wave) Vibration (sine wave) Non-operating Ambient temp Relative humidity (non-condensing) Maximum wet bulb (non-condensing) Shock (half sine wave) Vibration (sine wave) -40° to 85° C 5% - 95% 40° C 800G/1ms 5. 0G (22 - 500Hz) -40° to 85° C 5% - 95% 40° C 800G/1ms 5. 0G (22 - 500Hz) Acoustics (A-Weighted Sound Power (Bels)) Idle (typical) Op (typical) 1 2 2. 4 3. 0 GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less. [. . . ]