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3.5インチFDD
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3.5-inch Floppy Disk Drives DF35 Series
3.5インチFDD Features

High Reliability Floppy Disk Drives by the employment of a direct-drive motor.
25.4mm (1-inch) height body and 3.5-inch FDD standard size, facilitating easy system design.
Three recording capacity mode (2MB, 1.6MB and 1MB) is available.
High reliability attained by the employment of a direct-drive motor [Mean Time Between Failures (MTBF) of 80,000POH].
Driven by a single 5V power supply, with low power consumption [1.1W (typ.) during read/write operation].
FCC Class B applicable.
The followings are available.
Semi-sealed construction giving high performance by protecting against dust and anti-electromagnetic noise.
(1) With bezel (Standard) or without bezel (with shutter).
(2) Color choice of bezel, shutter and eject button. Ivory, Black (Standard). Gray, the others (Custom Color).
(3) Color choice of LED [Green (Standard), Red, Amber].
Applications
Specifications
Item
Model
DF354H
DF354N
Storage capacity (Unformatted)
2.0/1.0 MB
2.0/1.6/1.0 MB
Data transfer rate
500k/250k bps
500k/500k/250k bps
Recording density

686/343 bpmm
(17434/8717 bpi)

686/558/343 bpmm
(17434/14184/8717 bpi)
Track density
5.33 tpmm (135 tpi)
Number of tracks
160
160/154/160
Rotation speed

300 min-1
(300 rpm)

300/360/300 min-1
(300/360/300 rpm)
Track to track seek time
3 ms
Settling time
15 ms
Motor start time
500 ms
Dimensions (h) × (w) × (d)
25.4×101.6×140mm (1×4×5.51 in.)
Weight
420g (0.92 lb.)
Environmental and Physical Specifications
Power
Supply voltage
5V (±10%)
Consumption
W/R
1.1W (typ.)
Standby
0.05W (max.)
Environmental
condition
Temperature (operating/non-operating)
5 to 50°C (41 to 122°F) / -40 to 60°C (-40 to 140°F)
Humidity (operating/non-operating)
8 to 80%RH / 5 to 90%RH
Wet bulb max.
29.4°C (85.0°F)
Vibration
resistance
Operating
7.16m/s2 (0.73G) 17 to 200Hz, 3.24m/s2 (0.33G) 200 to 500Hz
Non-operating
19.61m/s2 (2G) 10 to 200Hz
Shock
resistance
Operating
49m/s2 (5G) 11ms half sine
Non-operating
686m/s2 (70G) 11ms half sine
Reliability
MTBF
80,000 POH
MTTR
30 minutes
Error rate
Soft
1 per 109 bits
Hard
1 per 1012 bits
Seek
1 per 106 seeks
Safety Standards

Safety standards
UL, CSA and TÜV approved
This product is manufactured in Malaysia and China.
Dimensions
Unit :mm


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