Seagate Momentus 4200.2 ST9100825A Product Manual page 11

Table 1: Specifications for 60, 50, 40, and 30 GB models
Drive specification
Formatted Gbytes (512 bytes/sector)*
Guaranteed sectors
Bytes per sector
Physical read/write heads
Discs
Cache (Mbytes)
Recording density, BPI (bits/inch typical)
Track density. TPI (tracks/inch typical
2
Areal density (Gbits/inch max)
Spindle speed (RPM)
Internal data transfer rate OD (Mbytes/sec max)
I/O data-transfer rate (Mbytes/sec max)
ATA data-transfer modes supported
Height
Width
Length
Weight (typical)
Average latency (msec)
Power-on to ready (sec typical)
Standby to ready (sec typical)
Startup current 5V (typical)
Track-to-track seek time (msec typical)
Average seek time (msec typical)
Average seek, read (msec typical)
Average seek, write (msec typical)
Full-stroke seek (msec)
Seek power (typical)
Read/write power (typical)
Idle mode (low power, typical)
Standby mode
Sleep mode
Voltage tolerance (including noise)
Ambient temperature
Temperature gradient
(°C per hour max, noncondensing)
Relative humidity
(noncondensing)
Relative humidity gradient
Wet bulb temperature (°C max)
Altitude, operating
Altitude, nonoperating (below mean sea level, max)
Shock, operating (Gs max at 2 msec)
Momentus 4200.2 Product Manual, Rev. C
ST960812A ST950814A
60 50
117,210,240 97,692,174
512
2 2
1 1
8
778k
126k
98.2
4,200 RPM-class performance (actual spin speed: 5,400 RPM)
37
100
PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
9.5 +/–0.2 mm (0.374 +/–.008 inches)
69.85 +/–0.25 mm (2.750 +/–0.010 inches)
100.2 +/–0.25 mm (3.945 +/–0.010 inches)
100 grams (0.22 lb)
5.6
3.5
3.0
1.0 amps
1.0 (read), 1.5 (write)
12.5
12.5
14.5
22 (typical); 24 (max)
2.00 watts
Read: 1.80 watts; Write: 1.80 watts
0.80 watts
0.26 watts (typical)***
0.26 watts (typical)***
5V ± 5%
5° to 55°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
30°C (operating)
40°C (nonoperating)
–304.8 m to 3,048 m (–1000 ft to 10,000 ft)
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
250
ST9402112A ST930218A
40 30
78,140,160 58,605,120
2 1
1 1
5