Seagate SV35 Series SATA Product Manual page 12

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