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Hitachi Global Storage Technologies
 
3.5 inch Disk Drive
Specifications
   
Item
 DK31AH-36(LW/LC) DK32AH-18(-91)(LW/LC)
Formatted Capacity * (Gbytes) 36.8 18.4(9.2)
Bytes per Sector * 512
#Cylinders * /#Heads/#Disks 11767/20/10 11767/10/5(11767/5/3)
Maximum LBA * (Hex) 44DC47F 226E23F(112B27F)
Seek Time:Average(Read/Write)(ms) 6.8/7.8 6.5/7.5
Spindle Speed(rpm) 7208
SCSI Interface Type fast/fast20(Ultra)/fast40(Ultra-2)
Transfer Rates:Async/Sync/Fast/Ultra/Ultra-2(Mbyte/s) 5.0/10.0/20.0/40.0/80.0
Operating Temperature(Celsius/Fahrenheit) 5-50°C/41-122°F
Power: 12V peak(Typ.) / 5V peak(Typ.)(A) 2.5/1.5 2.0/1.5(1.9/1.5)
Start Time(s) 20 18(15)
* : Indicates Specifcation for Default Setting of 512 Bytes/Sector.

Item
 DK319H-18(NS/WS/WC) DK329H-91(NS/WS/WC)
Formatted Capacity * (Gbytes) 18.4 9.2
Bytes per Sector * 512
#Cylinders * /#Heads/#Disks 7812/20/10 7812/10/5
Maximum LBA * (Hex) 224DF2B 1126F95
Seek Time:Average(Read/Write)(ms) 7.5/8.5
Spindle Speed(rpm) 7198
SCSI Interface Type fast/fast20(Ultra)
Transfer Rates:Async/Sync/Fast/Ultra(Mbyte/s) 5.0/10.0/20.0/40.0
Operating Temperature(Celsius/Fahrenheit) 5-50°C/41-122°F
Power: 12V peak(Typ.) / 5V peak(Typ.)(A) 2.7/1.35 1.9/1.35
Start Time(s) 15 14
* : Indicates Specification for Default Setting of 512 Bytes/Sector.

Item
 Unit DK328H-43(NS/WS/WC)
Interface
 - SCSI-2
Total Capacity
 Formatted MBytes 4373
Track Capacity
 Formatted Bytes 54784-87040
Sector Length
 Bytes 256/512/514/516/518/520/522/524
Number of Cylinders
 - 5870
Number of Heads (Data + Servo)
 - 10
Disk Speed
 rpm 7198
Power Requirements
 12V(MAX) A(MAX) 1.7
12V(TYP) A(TYP) 0.50(Idle)
5V(TYP) A(TYP) 0.52(Idle)

Item
 Unit DK325C-57 DK326C-10 DK326C-10WD DK326C-6
Interface
 - SCSI-2 (SCSI-3) SCSI-2
Total Capacity
 Formatted MBytes 573 1052 601
Track Capacity
 Formatted Bytes 29696-48128 36352-52736
Sector Length
 Bytes 512/1024
Number of Cylinders
 - 2458 3320
Number of Heads (Data + Servo)
 - 6+1 7+1 4+1
Disk Speed
 rpm 4500 6300
Power Requirements
 12V(MAX) A(MAX) 2.4 2.2
12V(TYP) A(TYP) 0.6 0.5
5V(TYP) A(TYP) 0.9 0.7

Item
 Unit DK315C-14 DK318H-91
(NS/WS/WC)
Interface
 - SCSI-2
Total Capacity
 Formatted MBytes 1438 9100
Track Capacity
 Formatted Bytes 29696-48128 54784-87040
Sector Length
 Bytes 512/1024 256/512/514/516/518/520/522/524
Number of Cylinders
 - 2464 6104
Number of Heads (Data + Servo)
 - 15+1 20
Disk Speed
 rpm 4500 7198
Power Requirements
 12V(MAX) A(MAX) 2.4 2.5
12V(TYP) A(TYP) 0.6 0.80(Idle)
5V(TYP) A(TYP) 0.9 0.52(Idle)

Item
 Unit DK312C-20 DK312C-25 DK314C-41 DK315C-11 DK315C-10
Interface
 - SCSI SCSI-2
Total Capacity
 Formatted MBytes 209.3 251.2 418.9 1105 1050
Track Capacity
 Formatted Bytes 19456 25600 30208 29696-48128
Sector Length
 Bytes 256/512/1024 512 512/1024
Number of Cylinders
 - 1076 1169 2480 2469
Number of Heads (Data + Servo)
 - 10 12 14 15+1 11+1
Disk Speed
 rpm 3600 4500
Power Requirements
 12V(MAX) A(MAX) 2.4
12V(TYP) A(TYP) 0.8 0.6
5V(TYP) A(TYP) 0.6 0.9


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