User manual HITACHI H3133 DATASHEET

[. . . ] H3xxx. txt 3 1/2-INCH 133, 171, 256 and 342 MB DISK DRIVES MODELS H3133, H3171, H3256 and H3342 ____________________________________ AN OEM OFFERING FROM IBM This 3 1/2-inch disk drive family is the latest in a series of IBM storage solutions for desktop personal computers. [. . . ] Reliability has been improved over previous models, giving a projected 250, 000 power-on hours MTBF. QUALITY AND AVAILABILITY These IBM drives are manufactured to stringent standards for quality and performance, with sensitive components assembled in a rigidly controlled clean environment. Extensive quality control and testing procedures are used throughout the manufacturing process to assure product reliability and data integrity. Worldwide IBM manufacturing facilities provide multi-site, high-volume production capability. HIGHLIGHTS 133, 171, 256 and 342 MB capacity AT* (IDE) and SCSI-2 interfaces ECC on the fly Zone Bit Recording 250, 000 power-on hours MTBF Mounts in all six directions Dedicated head landing zone Automatic actuator lock 96 KB segmented data buffer for read look-ahead and write 8. 3 MB/sec interface data transfer rate PRODUCT DESCRIPTION _______________________________________________________________________________ 3 1/2" 133, 171, 256 Models H3133, H3171, H3256, H3342 and 342 MB Disk Drives AT version only _______________________________________________________________________________ Configuration Interface AT (IDE) Device Capacity Formatted 133/171/256/342 MB (1) Sector Size 512 Bytes Recording Zones 2 User Cylinders 2420 Data Heads 2/2/3/4 Disks 1/1/2/2 Recording Density Maximum 55000 BPI Track Density 2800 TPI _______________________________________________________________________________ Performance Page 1 H3xxx. txt Rotational Speed 3600 RPM Media Transfer Rate 18. 0 (Inner), 26. 5 (Outer) Mbits/sec Interface Transfer Rate Maximum (AT only) 8. 3 MB/sec Data Buffer Read Look-Ahead and Write 96 KB (Three segments, 32 KB each) Latency Average 8. 33 msec Seek Time (Typical) Average (Read) 14 msec Track to Track 4. 5 msec Full Track 28 msec _______________________________________________________________________________ Reliability MTBF Projected power-on hours 250, 000 Error Rates Non-Recoverable Errors < or - per 1. 0E 13 Bits Transfer _______________________________________________________________________________ Power Requirements + 5 VDC + or - 5%, +12 VDC + 10% -8% Dissipation (typical) Start Up (Maximum Peak) 12. 6 Watts Seek 4. 2 Watts Idle 2. 5 Watts _______________________________________________________________________________ Physical Size Height 25. 4 mm Width 101. 6 mm Depth 146 mm Weight Maximum 510 g _______________________________________________________________________________ Operating Non-Operating _______________________________________________________________________________ Environmental Characteristics Ambient Temperature 5 to 55 degrees C -40 to 65 degrees C Relative Humidity Non-Condensing 8% to 90% 5% to 95% Maximum Wet Bulb Non-Condensing 29. 4 degrees C 35 degrees C Shock Half-sine-wave 15 G/5 msec 75 G/11 msec Vibration Random (RMS) 0. 67 G (5-500 Hz) 1. 04 G (2-200 Hz) _______________________________________________________________________________ (1) 1 MB=1, 000, 000 Bytes Product Description data represents IBM's design objectives and is provided for comparative purposes; actual results may vary depending on a variety of factors. This product data does not constitute a warranty. [. . . ] Copywrite International Business Machines Corporation 1994 * IBM and AT are trademarks of International Business Machines Corporation Page 2 [. . . ]