Hard disk drive, Ac adaptor – Acer 5620 User Manual
Page 51
Chapter 1
41
AC Adaptor
Hard Disk Drive
Item
Specification
Model name
LiteOn PA-1900-04AW
Delta 90W ADP-90SB BBAA
Input feature
Rated voltage
for 100Vac or 240Vac input AC
voltage
for 100Vac or 240Vac input AC
voltage
Input voltage range
from 90Vac to 264Vac
from 90Vac to 265Vac
Rated frequency
for 50Hz or 60Hz
for 50Hz or 60Hz
Frequency range
from 47Hz to 63Hz
from 47Hz to 63Hz
Steady AC current
less than 1.5A rms at 100Vac input
and maximum load
less than 1.5A rms at 100Vac input
and maximum load
Output feature
Rated voltage
19V
19V
Voltage range
18.05V to 20V
from 18.2V to 19.8V
Rated power
90 W
90 W
Output ripple and noise
less than 300mVp-p
less than 300mVp-p
Turn on delay time
within two seconds at 115 Vac input
voltage
within two seconds at 115 Vac input
voltage
Temperature
Operating: 0 to 40
o
C
Non-operating: -31 to 60
o
C
Operating: 0 to 40
o
C
Non-operating: -31 to 60
o
C
Seagate
Model
ST9120821A
ST9120824A
ST9100824A
ST9100825A
ST98823A
ST980829A
ST96812A
Drive Specification
Formatted
Gbytes (512
bytes/sector)
120
100
80
60
Physical read/
write head
4
4
3
3
Discs
2
2
2
2
Spindle Speed
(RPM)
4200 (ST9120824A, ST9100825A, ST980829A)
5400 (ST9120821A, ST9100824A, ST98823A, ST96812A)
Internal transfer
rate (Mbytes/sec.
max.)
56.25 (ST9120824A, ST9100825A, ST980829A)
48.25 (ST9120821A, ST9100824A, ST98823A, ST96812A)
I/O data transfer
rate (Mbytes/sec.
max.)
100
ATA data transfer
mode supported
PIO modes 0-4; Multiword DMA modes 0-2; Ultra DMA modes 0-5
Bytes per sector
512
Average latency
(msec)
5.6
Average seek,
read (msec.
typical)
12.5