Seagate SV35 SERIES ST3250824SV - Manual (Page 12)

6 SV35 Series SATA Product Manual, Rev. C
Table 2: Drive specifications for 250 Gbyte models
Drive specification ST3250824SV
Formatted Gbytes (512 bytes/sector)* 250
Guaranteed sectors 488,397,168
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density in BPI (kbits/inch max) 790.1
Track density TPI (ktracks/inch avg) 124.5
Areal density (Gbits/inch 2 avg) 97.69
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 867.2
Sustained transfer rate (Mbytes/sec max) 76.6
I/O data transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
SATA data-transfer modes supported 3.0 Gbits/sec
1.5 Gbits/sec
Cache buffer 8 Mbytes
Height (max) 26.1 mm (1.028 inches)
Width (max) 101.6 mm (4.000 inches) +/-0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (max) grams 580 grams (1.28 lb.)
Average latency (msec) 4.16
Power-on to ready (typical) 16 sec
Standby to ready (typical) 16 sec
Track-to-track seek time (msec typical) <0.8 (read), <1.0 (write)
Average seek (msec typical) 18 (read), 20 (write)
Startup current (typical) 12V (peak) 2.0 amps
Seek power (typical) 8.6 watts
DVR Operating (typical) 6.49 watts
Idle mode (typical) 8.00 watts
Standby mode (typical) 0.80 watts
Sleep mode (typical) 0.80 watts
Voltage tolerance
(including noise) 5V ± 5%
12V ± 10%
Ambient temperature 0° to 60°C (operating)
–40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max) 20°C (operating)
30°C (nonoperating)
Relative humidity 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature
(°C max)
37.7 (operating)
40 (nonoperating)
Altitude, operating –60.96 m to 3,048 m
(–200 ft to 10,000
+ ft)