750MB 2.5" IDE IBM HD Model DPRA20810 - Used

Condition: Used/30Day

Features

• Magneto resistive heads
  
• No-ID physical format
  
• Closed loop actuator servo (embedded sector servo)
  
• PIO data transfer - mode 3
  
• DMA data transfer
  Single word mode - mode 2
  Multiword mode - mode 1
  
• Interleave factor 1:1
  
• Enhanced ECC implementation
  128 bit reed solomon code operating 10-bit symbol
  Multi-burst on-the-fly correction (up to 4 symbols in a sector)
  
• Automatic retry on errors
  
• Self diagnostics during power on
  
• Power saving modes
  
• All axis (6 directions) mounting
  
• No preventive maintenance

Configuration

• Interface IDE
  
• Formated capacity 810/1215 MB *1
  
• Sector size 512 bytes
  
• Sectors / track (logical) 63
  
• Head number (logical) 16
  
• Cylinder number (logical) 1572/2358
  
• Customer usable data sectors 1,584,576/2,376,864
  
• Disks 2/3
  
• Recording zones 8
  
• Areal density average (max) 700 Mb/sq.in.
  
• Recording density (max) 110.3 Kbpi
  
• Track density (max) 6350 TPI

Performance

• Rotational speed 4900 RPM
  
• Media transfer rate 36.3(id),57.0(od) Mbits/sec
  
• Data buffer read buffer 32 KB write cache 32 KB
  
• Interface transfer rate (max) 10 MB/sec
  
• Latency average 6.1 msec
  
• Seek time (typical)
  
  
  • Average (read) 12 msec
    
  • Track to track 4 msec
    
  • Full track (read) 23 msec
  
  
• Spin up (typical) 3.0 sec

Power

• Requirements +5 VDC *2
  
• Power supply ripple (0-20 Mhz) 100 mV p-p max *3
  
• Dissipation (typical)
  
  
  • Idle (ave) 1.3 Watts 0.26 A RMS
    
  • Read/write 2.6 Watts 0.52 A RMS
    
  • Seek (ave) 2.6 Watts 0.52 A RMS
    
  • Shutdown 0.1 Watts 0.02 A RMS
    
  • Start up (average to ready) 3.5 Watts 0.70 A RMS
    
  • Start up (maximum peak) 4.7 Watts 0.94 A RMS
  
  
• Supply rise time 7 - 100 ms

Physical size

• Height 17.0 mm
  
• Width 69.85 mm
  
• Depth 100.2 mm
  
• Weight 186 g (max)

Environmental characteristics

• Altitude
  
  
  • Operating -300 to 3,000 m
    
  • Ship / store -300 to 12,000 m
  
  
• Temperature *4
  
  
  • Operating 5 to 55 C
    
  • Storage 0 to 65 C
    
  • Shipping -40 to 65 C
    
  • Temperature gradient (max) 20 C / hour
    (Operating, storage or shipping)
  
  
• Operating
  
  
  • Ambient temperature 5 to 55 C
    
  • Relative humidity (non-condensing) 8 to 90 %
    
  • Maximum wet bulb (non-condensing) 29.4 C
    
  • Shock *5 (half-sine wave) 100 G / 2 msec
    
  • Vibration random (RMS) 0.67 G (5-500 Hz)
  
  
• Non-operating
  
  
  • Ambient temperature -40 to 65 C
    
  • Relative humidity (non-condensing) 5% to 95%
    
  • Maximum wet bulb (non-condensing) 40 C
    
  • Shock *6 (half-sine wave) 300 G / 2 msec
    
  • Vibration random (RMS) 1.04 G (2-200 Hz)
  
  
  

  Notes:

  
  
  1. 1 MB = 1,000,000 bytes
     
  2. The drive shall not incur damage for an over voltage condition of +25% (maximum duration of 20 ms) on the 5 V nominal supply.
     
  3. The maximum supply ripple is measured at the 5 V input on the HDD.
     
  4. The system is responsible for providing sufficient air movement to keep the surface temperature , measured at the center of the drive's top cover.
     
  5. The drive will withstand a 100 G half-sine wave shock pulse for a 2 msec duration. The drive will experience no data loss or permanent damage during idle, seek or read modes when experiencing no more than a shock pulse of 100 G half-sine wave for a 2 ms duration.
     
  6. The drive will withstand, with no permanent damage or degradation in performance, a 300 G half-sine wave pulse of 2 ms duration.