Alps Electronics FDD 1.44MB DF354 BLACK DF354H121F Leaflet

This catalog is printed with soy ink. 
This catalog is printed with Water-free surface printing, 
which discharges no toxic waste fluid.

Printed in Japan  2005.1.GGX

○ 

1.Unless  specifically  indicated  otherwise,  products  in  this  catalog  have 

been  designed  and  manufactured  for  use  in  ordinary  electronic 
equipment  and  devices,  such  as  AV  equipment,  electric  home 
appliances,  office  machines,  and  communications  equipment.   
Equipment  manufacturers  are  consequently  advised  that  when  these 
products are planned for equipment that requires a high degree of safety 
and  reliability,  especially  those  apparatuses  like  medical  equipment, 
aviation  and  aircraft  equipment,  space  equipment,  and  burglar  alarm 
equipment,  the  manufacturers  should  assure  equipment  safety  by 
providing  protection  circuits  and  redundant  circuitry  and  should  fully 
study the suitability of such products for the intended equipment. 

2.Specification indicated in this catalog is outline only. When employing the 

product, use of an officially authorized specification for supply contract is 
recommended. 

3.The  external  appearance,  performances,  and  other  properties  of  the 

product  may  be  changed  for  improvement  without  prior  notice.    The 
product  introduced  in  this  catalogue  may  discontinue  being  produced 
without prior notice. 

4.Please note that the colors of products shown in this catalog may be a 

little different from those of the actual products. 

5.Names for products and companies and titles of specifications indicated 

in  this  catalogue  are  mostly  trademarks  or  registered  trademarks  of 
theirrespective owners. 

6.Please  contact  us  for  any  enquiries  and  queries  on  our  products  and 

their uses. 

7.This catalog is valid till the end of December 2005.

Storage capacity （Unformatted） 

Data transfer rate 

Recording density 

Track density 

Number of tracks 

Rotation speed 

Track to track seek time 

Settling time 

Motor start time 

Dimensions  （h） x （w） x （d） 

Weight

2.0/1.0 MB 

500K/250K bps 

686/343 bpmm 

（17434/8717 bpi） 

 

160 

300 min

-1

 （300 rpm） 

2.0/1.6/1.0 MB 

500K/500K/250K bps 

686/558/343 bpmm 

（17434/14184/8717 bpi） 

 

160/154/160 

300/360/300 min

-1

 （300/360/300 rpm） 

5.33 tpmm （135 tpi） 

 

 

3 ms 

15 ms 

500 ms 

25.4 x 101.6 x 140 mm （1 x 4 x 5.51 in.） 

420g （0.92 lb.） 

Consumption

Supply voltage 

 

 

Temperature 

(operating / non-operating) 

Humidity 

(operating / non-operating)

 

Wet bulb max. 

Operating 

Non-operating 

Operating 

Non-operating

5 V（±10%） 

1.1 W（typ.） 

0.05 W max. 

5 to 50°

C （41 to 122 °

F）/ −40 to 60°

C （−40 to 140 °

F） 

8 to 80 %RH / 5 to 90 %RH 

29.4°

C （85.0 °

F） 

7.16 m/s

2

（0.73 G）17 to 200Hz, 3.24 m/s

2

（0.33 G）200 to 500Hz 

19.61 m/s

2

（2 G）10 to 200Hz 

49 m/s

2

（5 G）11ms half sine 

686 m/s

2

（70 G）11ms half sine

W/R 

Standby

Error rate

MTBF 

MTTR

Soft 

Hard 

Seek

80,000 POH 

30 minutes 

1per10

9

 bits 

1per10

12

 

 bits 

1per10

6

 seeks

Safety standards

Note ： This product is manufactured in Malaysia and China.

UL, CSA and T V approved

CATALOG No.12-E

T