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Western Digital WD2500AVJB 250GB Ultra ATA100 Hard Drive

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Western Digital WD AV WD2500AVJB 250GB 3.5″ 7.2K RPM EIDE / Ultra ATA 100 HDD – Refurbished

WD AV
Designed for 24×7 audio and video environments.

WD AV hard drives take advantage of significant design advances in WD’s storage technology by incorporating SilkStream™ streaming with whisper-quiet acoustics, 7200 RPM performance, and thermally optimized operation. These design advances enable unparalleled reliability and low cost of ownership for manufacturers of digital video recording devices.

PRODUCT FEATURES

24×7 reliability
With a MTBF of 1 million hours, these drives are designed to last in always-on streaming digital audio/video environments such as PVR/DVR, DVR recorders, and surveillance video recorders.

Quiet
Noise levels have been minimized to less than one sone – virtually below the threshold of human hearing.

PATA or SATA interface
Although most systems use hard drives with a SATA interface, some unique or legacy systems require drives with a PATA interface.

Compatible
Tested for compatibility in a broad range of AV products including set top boxes, DVD recorders, and mainstream surveillance systems.

IntelliSeek™
Optimizes seek speeds to lower power consumption, noise and vibration.

SilkStream
Optimized for smooth, continuous digital video playback of up to twelve simultaneous HD streams.** SilkStream is compatible with the ATA streaming command set allowing CE customers to use standard streaming management and error recovery options.

1 million hours MTBF
Best-in-class reliability for mainstream 3.5-inch form-factor AV storage.

Ramp Load
Parks the recording heads off the disk surface during spin up, spin down, and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved non-operational shock tolerance.

Preemptive Wear Leveling (PWL)
The drive arm frequently sweeps across the disk to reduce uneven wear on the drive surface common to audio/video streaming applications.

SKU: WD2500AVJB Category: Tags: , ,
SPECIFICATIONS
Model Number WD2500AVJB
Capacity 250GB
Formatted Capacity 250,059 MB
Used Sectors Per Drive 488,397,168
Interface 40-pin EIDE (ATA 100)
Bytes Per Sector 512
Dedicated Landing Zone Yes
Actuator Latch/Auto Park Yes
Data Transfer Rate (maximum)
– Buffer to Host
– Host to/from Drive		 100 MB/s max
972 Mbits/s sustained minimum)
Interleave 1:1
Average Read Seek 8.9 ms (average)
Rotational Speed 7200 RPM
Read Cache Adaptive
Write Cache Yes
Buffer 8 MB
Drive Ready Time (from power on) 12.5 sec average
Start/Stop Cycles 50,000 min
Error Rate (non-recoverable) <1 in 10e14 bits read
Height 1.028 in (25.4 mm) max)
Length 5.787 in (147.0 mm) max
Width 4.0 in (101.6 mm) ± .01 in.
Read/Write
– 12 V (± 10%)
– 5V(± 5%)
– Power		 410 mA
675 mA
8.3 W
Seek
– 12 V (± 10%)
– 5V(± 5%)
– Power		 525 mA
625 mA
15.1 W
Idle
– 12 V (± 10%)
– 5V(± 5%)
– Power		 390 mA
600 mA
7.7 W
Standby
– 12 V (± 10%)
– 5V(± 5%)
– Power		 6 mA
180 mA
1.0 W
Sleep
– 12 V (± 10%)
– 5V(± 5%)
– Power		 6 mA
180 mA
1.0 W
Shock
– Operating (2ms)
– Non-operating (2ms)
– Half sine wave measured in 2 ms		 65G
300G
duration, measured withough isolation
Vibration
Operating
– Random
– Linear
Non-operating
– Linear

0.008 g2 / Hz (10 to 300 Hz)
20-300 Hz, 0.75G (0 to peak)

20-500 Hz, 0.195 inches (dbl amp)
20-500 Hz, 4G (0 to peak)
Operating Temperature and Humidity
– Temperature
– Humidity
– Thermal Gradient		 0°C to 60°C
5-95% RH non-condensing
20°C/hour (maximum)
Non-Operating Temperature and Humidity
– Temperature
– Humidity
– Thermal Gradient		 -40°C to 65°C (-40°F to 149°F)
5-95% RH non-condensing
30°C/hour (maximum)
Acoustics (average)
– Idle Mode
– Seek Mode		 25 dBA
26 dBA

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