Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 8 MB
Average Latency 4.20 ms (nominal)
Contact Start/Stop Cycles 50,000 minimum

Seek Times
Read Seek Time 8.9 ms
Write Seek Time 10.9 ms (average)
Track-To-Track Seek Time 2.0 ms (average)
Full Stroke Seek 21.0 ms (average)

Transfer Rates
Buffer To Disk 748 Mbits/s (Max)

Buffer to Host (EIDE)
Mode 5 Ultra ATA 100.0 MB/s
Mode 4 Ultra ATA 66.6 MB/s
Mode 2 Ultra ATA 33.3 MB/s
Mode 4 PIO 16.6 MB/s
Mode 2 multi-word DMA 16.6 MB/s


Recommended Configuration Parameters
Cylinders 16,383
Number of Heads (Logical) 16
Number of Heads (Physical) 6
Sectors Per Track 63


Physical Specifications
Formatted Capacity 250,059 MB
Capacity 250 GB
Interface EIDE
Actuator Type Rotary Voice Coil
Number of Platters 3
Bytes Per Sector 512
User Sectors Per Drive 488,397,168
Servo Type Embedded


Physical Dimensions
English
Height 1.028 Inches (Max)
Length 5.787 Inches (Max)
Width 4.00 Inches (+/- 0.010 inch)
Weight 1.32 Pounds (+/- .10 lb)

Metric
Height 26.1 mm (Max)
Length 147 mm (Max)
Width 101.6 mm
Weight 0.6 kg (+/- .082 kg)


Environmental Specifications
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 2 ms

Acoustics
Idle Mode 28 dBA (average)
Seek Mode 0 33 dBA (average)
Seek Mode 3 29 dBA (average)

Temperature (English)
Operating 41° F to 131° F
Non-operating -40° F to 149° F

Temperature (Metric)
Operating 5° C to 55° C
Non-operating -40° C to 65° C

Humidity
Operating 5-95% RH non-condensing
Non-operating 5-95% RH non-condensing

Altitude (English)
Operating -1,000 feet to 10,000 feet
Non-operating -1,000 feet to 40,000 feet

Altitude (Metric)
Operating -305M to 3,050M
Non-operating -305M to 12,200M

Vibration
Operating
Linear 20-300 Hz, 0.75G (0 to peak)
Random 10-300 Hz, 0.004 g2 / Hz

Non-operating
Low Frequency 5-20 Hz, 0.195 inches (double amplitude)
High Frequency 20-500 Hz, 4.0G (0 to peak)


Electrical Specifications
Current Requirements
12 VDC
Read/Write 530 mA
Idle 510 mA
Standby 30 mA
Sleep 30 mA

5 VDC
Read/Write 450 mA
Idle 400 mA
Standby 150 mA
Sleep 120 mA

Power Dissipation
Read/Write 8.60 Watts
Idle 8.10 Watts
Standby 1.10 Watts
Sleep 1.00 Watts