MINIATURE FUSES
Special Type, 500 V, FF
Specifications
6.3x32 mm / No. 231
Leadfree
Packaging
Time-Current Characteristic
Very Quick Acting (FF)
002: Pack (100 pcs.)
Materials
Tube:
Standard
None
Ceramic
End Caps: Nickel-plated brass
Approvals
None
Operating Temperature
-25 ºC to +70 ºC (consider de-rating)
Features
Climatic Category
Designed for semiconductor protection
For high voltage applications
-25 ºC/+70 ºC/21 days (EN 60068-1..3)
Stock Conditions
+10 ºC to +60 ºC
relative humidity ≤ 75 % yearly average,
without dew, maximum value for 30 days-95 %
High breaking capacity
Pluggable into clips or shocksafe holders
Dimensions (mm)
Vibration Resistance
24 cycles at 15 min. each (EN 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10 g acceleration
∅ 6,3
32
Marking
, FF, Current Rating, 500 V
Unit Weight
2.5 g (approx.)
Limits for Pre-arcing Time
1
Rated Current
2.00 A ... 16.00 A
1.0 x IN
> 1 h
1.5 x IN
2.75 x IN
4 x IN
10 x IN
< 3 ms
< 30 min 2 ms ... 100 ms 1 ms ... 25 ms
Permissible continuous operating current is ≤ 80% at ambient temperature of 23ºC (73.4ºF).
Rated
Amp
Voltage
Rating
Breaking
Capacity
Voltage Drop Power Dissipation Melting Integral
Approvals
Current
Code
1.0 x IN
1.0 x IN
10 x IN
max. (mV)
max. (W)
max. (A2s)
2.00 A
2.50 A
1200
1250
500 V
500 V
800
800
3.0
3.0
0.35
0.44
3.15 A
1315
1400
1500
1630
1800
2100
500 V
500 V
500 V
500 V
500 V
500 V
800
700
600
600
600
500
3.0
3.6
3.6
3.6
5.2
5.2
0.75
2
4.00 A
1.6
1000A / 500VAC
50-60Hz
2
5.00 A
2.5
2
2
2
2
1,2
None
6.30 A
8.00 A
10.00 A
12.50 A
16.00 A
5
10
20
38
68
cos
ϕ = 1.0
2125
2160
500 V
500 V
500
480
6.3
6.3
1
2
16.00 A: 0.9 x IN > 1 h
Depending on the application and mounting, the fuse heating at max. ambient temperature in a closed fuseholder should be considered.
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
Order
Information
Qty.
Order-
Number
Series
231
Amp Code
Packaging
Specifications are subject
to change without notice
In our continuing strategy to deliver unparalleled circuit protection solutions,
technical expertise and application leadership, we proudly introduce the
WICKMANN Group and its products to the Littelfuse portfolio.
www.littelfuse.com
012006