Seagate ST12400W HARD DISK DRIVE REPAIR, Seagate ST12400W HARD DISK DRIVE SPECIFICATIONS,
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Seagate ST12400W Hard Disk Drive Repair, Seagate ST12400W Hard Disk Drive Specifications, Seagate ST12400W Seagate ST12400W
Specifications



seagate st12400w picture.
seagate st12400w picture.
seagate st12400w picture.

Seagate ST12400W Specifications
Model Capacity Size Height Bus Type Int.Type
ST12400W 2148MB 3.5" HHT SCSI2 W

Hawk 2   :    ST12400W
Hawk 2

Capacity: 
Speed: 
Average Read Time: 
 

2.15 GB
5400 rpm
9.3 ms





ST-12400W SCSI-2 Fast Wide (Hawk 2)

  �����������ͻ
  � REAR VIEW �  (ST-12400W/WD only)
  �����������ͼ
        (TOP)                J1-Auxiliary
          ___________________  ���  �1�/���������\
        �( �����������������1)ͳ::::::�� 0 0 0 0 ��
          \�����������ij����/  �  �� 2���5�G�G�12�
       68 pin I/O Cable�        ������
                                ������
        Auxiliary option header ������    SCSI ID = 0 (none)
           pin-11 +5v  ���������ٳ������� SCSI ID = 1
           pin-10 GND  ����������ٳ������ SCSI ID = 2
           SCSI ID = 8 ������������������ SCSI ID = 4
            or pin-8 BUSY �����      ���� or pin-6 REFIND+


  �����������ͻ
  � REAR VIEW �  (ST-12400WC only)
  �����������ͼ
                     80 pin I/O and DC Power Wall/bracket Connection
                     �  Female
    J1          /���ij���������������\      TOP (HDA)
     ����������/ �������������������� \����������
              (\�1������������������40/)    BOTTOM

     Notes on 80 pin I/O connector:
       pins  1 -  4 = +12v        41 - 44 = 12v GND
            34 - 36 = +5v         74 - 76 = 5v GND
                 37 = SYNC             77 = LEDC
                 38 = MTRON            78 = DLYDST
                 39 = SCSIA0           79 = SCSIA1
                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin
                                   2-557101-1 right angle to PCB

  �����������������ͻ
  � RIGHT SIDE VIEW �  (Both ST-12400W and ST-12400WC)
  �����������������ͼ


BACK   �͸       J2  12345678                    TOP (HDA)  FRONT
 OF    J1�����������������������P�W�A����������������������� OF
DRIVE  �;           ::::::::                    BOTTOM     DRIVE
                     ��������
   �Terminator Power ٳ������ Reserved
  ڴTerminator Power �ٳ����� Start Delay (12 secs * ID)
  �     Enable T-Res ��ٳ���� Motor Start
  �    Parity Enable �������� Write Protect
  �
  �
  � ��ST12400W only�����������������Ŀ
  �Ĵ Termination Power-source Table �
    ����������������������������������������������Ŀ
    ������....�����....�����PWA edge�����          �
    �                                              �
    �  1 2     1 2      1 2                        �
    � �ķ       �ķ    ���ķ  A Drive Supplies Bus �
    � ���     ��    ����  B Drive Supplies Own �
    � ���     ���     � �   C Bus Supplies Drive �
    �   A       B        C                         �
    ����������Default�������������������������������
  Note: The model ST-12400WC drive cannot furnish terminator power,
because no pins on the 80 pin I/O connector are devoted to terminator
power.


  ������������ͻ
  � FRONT VIEW �  (ST-12400W only)
  ������������ͼ

                      TOP (HDA)   J6  ������1�
     ��P�W�A�������������������������͵::::::��
                 *    BOTTOM          ������2�
                 �                     ������
            LED ��                     ������
                                       ������
               Auxiliary option header ������    SCSI ID = 0 (none)
                  pin-11 +5v  ���������ٳ������� SCSI ID = 1
                  pin-10 GND  ����������ٳ������ SCSI ID = 2
                  SCSI ID = 8 ������������������ SCSI ID = 4
                   or pin-8 BUSY �����      ���� or pin-6 REFIND+

      If these ID jumper are used, then
         ID jumpers shown in rear view Aux-J1
         or 80 pin I/O cable ARE NOT USED.

  ������������ͻ
  � FRONT VIEW �  (ST-12400WC only)
  ������������ͼ

                      TOP (HDA)   J6  ������1�
     ��P�W�A�������������������������͵::::::��
                 *    BOTTOM          ������2�
                 �                     ������
            LED ��                     ������
                                       ������
                  SCSI ID = 8 ���������ٳ������� Remote LED (pin-2 cathode)
                  SCSI ID = 4 ����������ٳ������ Sync Spindle
                  SCSI ID = 2 �����������ٳ      SCSI ID = 0 (none)
                                          ������ SCSI ID = 1


                            ST-12400W
                            Hawk 2

       UNFORMATTED CAPACITY (MB) ________________2537
       FORMATTED CAPACITY (xx SECTORS) (MB) _____2148
       AVERAGE SECTORS PER TRACK ________________84 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________49,799
       CYLINDERS ________________________________2,621 user
       HEADS ______PHYSICAL______________________19
       DISCS (3.5 in) ___________________________10
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 45.6
       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync
       SPINDLE SPEED (RPM) ______________________5,411
       AVERAGE LATENCY (mSEC) ___________________5.54
       BUFFER ___________________________________256/1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST
                                                 ASA
       SECTORS PER DRIVE ________________________
       TPI (TRACKS PER INCH) ____________________3000
       AVERAGE ACCESS (ms) (read/write)__________9.3/10.8
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) ___________________1
       MAX FULL SEEK (ms) _______________________21
       MTBF (power-on hours) ____________________500,000
       SHOCK (G's):
                operating (Read/Write) __________10
                nonoperating ____________________60
       ACOUSTICS (typ/max dBA) __________________
       POWER REQUIREMENTS: +12V START-UP (amps) _2.4
                           +12V TYPICAL (amps) __0.57
                           +5V START-UP (amps) __0.8
                           +5V TYPICAL (amps) ___0.42
                           TYPICAL (watts) ______8.9
                           MAXIMUM (watts) ______10.8
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):     1.63/41.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.75/146.1
                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with twelve spare sectors
per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product 
offerings or specifications. (08/26/94)

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