Wire wound Fuse Resistors FKN
  • Wire wound Fuse Resistors FKNWire wound Fuse Resistors FKN

Wire wound Fuse Resistors FKN

Wire wound Fuse Resistors FKN Features: 1.Good heat durability, low temperature coefficient, low noise, high load and power, nonflammability.Can be fusible during the stated time for protecting the circuit once working at the required overload voltage. 2.Operating ambient temperature :-55°C~+275°C 3.The surface is gray white nonflammable coating and indicate a white ring at the behind of the precision color ring. 4.Resistance tolerance:±5%,±10%.

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Product Description

Wire wound Fuse Resistors FKN



Products

Wire wound Fuse Resistors FKN

Features

1.Good heat durability, low temperature coefficient, low noise, high load and power, nonflammability.Can be fusible during the stated time for protecting the circuit once working at the required overload voltage.

2.Operating ambient temperature :-55°C~+275°C

3.The surface is gray white nonflammable coating and indicate a white ring at the behind of the precision color ring.

4.Resistance tolerance:±5%,±10%.

Dimensions and Voltage Performance.

Part No.

Power

Resistance tolerance

Dimensions

Max. working
Voltage

Max. overload voltage

Max. insulation
voltage

L±1

D±0.5

d±0.05

FKN012

1/2W

0R~10R

9.0

3.2

0.58

150V

400V

250V

FKN01B

1W

0R~15R

9.0

3.2

0.75

150V

400V

250V

FKN02B

2W

0R~15R

11.0

4.5

0.75

150V

400V

350V

FKN03B

3W

0R~22R

15.0

5.0

0.75

350V

500V

500V

FKN04B

4W

0R1~22R

17.0

6.0

0.75

350V

600V

500V

FKN05B

5W

0R1~27R

17.0

6.0

0.75

350V

600V

500V

FKN06B

6W

0R1~33R

25.0

8.0

0.75

500V

600V

750V

FKN07B

7W

0R1~47R

31.0

8.0

0.75

500V

600V

750V

FKN08B

8W

0R1~56R

41.0

8.0

0.75

500V

600V

750V

FKN010B

10W

0R1~56R

52.0

8.0

0.75

750V

800V

1000V

Fusing Characteristics:

Fusing Spec.

Multiple Rate Power

Rated resistance range

<2R

2~10R

>10R

Fusing time (s) 

G

12

-

60

30

B

16

60

30

15

C

25

30

15

7.5

J

25

 

 

 

Test Item

Test Condition

Performance 

Temperature Coefficient

The resistance value at normal temperature and normal temperature added 100°C, calculate per °C resistance value change rate.

±300ppm/°C

Short Time overload

10×rated voltage or Max. overload voltage(get the lower) for 5 seconds.

 

R≤±(1%R0+0.05Ω)

Pulse overload

At 4×rated voltage or Max. pulse overload voltage(get the lower)cycle 10000±200times(1second on,25 seconds off).

 

R≤±(1%R0+0.05Ω)

Resistance to soldering Heat

Immerge into the 350±10°C tin stove for 2~3seconds.

R≤±(1% R0+0.05Ω)

Solderability

Immerge into the 245±3°C tin stove for 2~3seconds.

The soldering area is over 95%.

 

Temperature cycling

At -55°C for 30 min. ,then at+25°C for 10~15°C,then at +125°C for 30 min., then at +25°C for 10~15 min., total 5cycles.

 

R≤±(1% R0+0.05Ω)

 

Load life in humidity

Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 40±2°C and 90~95% relative humidity.

 

R≤±(5% R0+0.05Ω)

 

Load life in heat 

Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 70±2°C.

 

R≤±(5% R0+0.05Ω)

Nonflammability

Respectively load AC voltage by 5,10,16 times rated power for 5 minutes .

No visible flame.

Note: We can according customer’s requirements to customize the other fusing characteristics resistors .





Rated Power Derating Curve of Wire wound Fuse Resistors FKN​:






Fusing Curve of Wire wound Fuse Resistors FKN​:

 





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