Seagate 2.5" / ATA / 40GB / Momentus 5400.3 (ST940815A)

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Artikelnummer: ST940815A

Momentus® 5400.3 hard drives incorporate perpendicular recording technology for maximum capacity, reliability and performance in demanding operating environments. Perpendicular recording technology increases capacity and reliability by storing data vertically instead of horizontally for maximum data density on the hard drive and reduced potential for thermal decay.

Key Features and Benefits

8-MB cache buffer
Ultra ATA/100 interface
Perpendicular recording technology for increased storage capacity
Fast performance
Whisper-quiet acoustics
Superb reliability
Rugged mobility
Low power consumption
5-year warranty
Applications

Mainstream laptops
Tablet PCs
External 2.5-inch hard drives
Printers and copiers
Non-mission-critical blade servers



Specifications 40 GB

Model Number ST940815A
Interface Ultra ATA/100
Cache 8 MBytes
Capacity 40 GB
Areal density (avg) 132 Gbits/inch2
Guaranteed Sectors 78,140,160
Number of pins on the I/O connector 44

PHYSICAL
Height (max) 9.5 mm (0.374 inches)
Width (max) 69.85 mm (2.750 inches)
Length (max) 100.5 mm (3.957 inches)
Weight (typical) 102 grams (0.22 pounds)

PERFORMANCE
Spindle Speed 5,400 rpm
Average latency 5.56 msec
Random read seek time 11.0 msec
Random write seek time 13.0 msec

RELIABILITY
Annual Failure Rate 0.60%
Unrecoverable read errors 1 in 10^14

POWER
Average seek power 2.0 watts
Standby power 0.20 watts
Sleep power 0.207 watts
Maximum start current, DC 1.0 amps

ENVIRONMENT
Ambient Temperature
Operating 0 to 60 degrees C
Nonoperating -40 to 70 degrees C
Maximum operating temperature change 20 degrees C per hour
Maximum nonoperating temperature change 30 degrees C per hour
Relative Humidity
Operating 5 to 90
Nonoperating 5 to 95
Maximum allowable humidity change 30 per hour

Altitude
Operating altitude (min) -304.8 meters (-1,000 feet)
Operating altitude (max) 3,048 meters (10,000 feet)
Nonoperating altitude (min) -304.8 meters (-1,000 feet)
Nonoperating altitude (max) 12,192 meters (40,000 feet)

Shock
Operating Shock (max) 350 Gs at 2 msec
Nonoperating Shock (max) 800 Gs at 2 msec
Vibration
Operating vibration 1.0 Gs at5 to 500 Hz
Nonoperating vibration 5.0 Gs at 5 to 500 Hz

ACOUSTICS
Acoustics (Idle Volume) 2.4 bels
Acoustics (Seek Volume) 2.9 bels