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Seagate 'Big Bear' ST34520W
4.5GB
Specification
| Vendor |
Seagate |
| Range |
Medalist Pro |
| Apricot Part Number |
PT16295831 |
| Form Factor |
3.5" 1" High |
| Weight |
0.68Kg |
| Formatted Capacity (x106 bytes) |
4551MB |
| Formatted Capacity (x220 bytes) |
4340.29 |
| Number of Platters |
2 |
| Number of Heads (User) |
4 |
Performance
| Actuator |
Voice Coil |
| Positioning System |
Embedded |
| Average Access Time |
Read |
8.5ms |
| Write |
9.5ms |
| Single Track Seek Time |
Read |
2.5ms |
| Write |
3.5ms |
| Nominal Rotational Speed |
7,200rpm |
| Average Rotational Latency |
4.17ms |
| Spin-up-Time (To Drive Ready) |
20 secs |
| Maximum Sector Transfer Rate |
24.235MB/s |
| Typical Data Sector Transfer Rate |
Maximum |
18.31MB/s |
| Minimum |
10.44MB/s |
| Type of Head Utilised |
MR |
| Read Channel Implementation |
EPRML |
| Encoding Method |
RLL (16,17) |
| Standard 50 Pin 'A' Connector |
No |
| Standard 68 Pin 'P' Connector |
Yes |
| SCA-2 (80 Pin) Connector |
No |
| Wide '16-bit' SCSI |
Yes |
| UltraSCSI |
Yes |
| Ultra-2, Low Voltage Differential |
No |
| Maximum SCSI Burst Transfer Rate |
40MB/s Sync. |
| Cache Size |
Total |
512KB |
| Read Data |
380KB |
| Segmentation Type |
1 x 380KB |
| Continuous Read Prefetch |
Yes |
| Write Cache |
Yes |
Environment
| Ambient Operating
Temperature |
Minimum |
0°C |
| Maximum |
55°C |
| Maximum Thermal Gradient |
20°C/hr |
| Operating Shock, 0 Err's (G, 11ms) |
10G, ½ Sine |
| Operating Vibration (G, 5-300Hz) |
0.5G |
| Maximum Audible Noise |
39dbA @ 1m |
| Average Power Consumption |
Nominal Read/Write |
14.9W |
| Nominal Idle |
12W |
| DC Power Requirements |
+12V Startup Maximum |
2.50Amps |
| +12V Nominal Read/Write |
0.78Amps |
| +5V Seek Peak |
0.38Amps |
| +5V Nominal Read/Write |
0.33Amps |
| MTBF |
800,000 poh |
Jumper Settings
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