FKN Fusible Wire Wound Resistors Flameproof
  • FKN Fusible Wire Wound Resistors FlameproofFKN Fusible Wire Wound Resistors Flameproof

FKN Fusible Wire Wound Resistors Flameproof

FKN Fusible Wire Wound Resistors Flameproof Features: 1. It is suitable for protecting circuit boards. 2. Noncombustible insulating coating;“Solven”t proof and resistant to high temperature. 3. Low temperature coefficient. 4. Uniform in fusing time.

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Product Description

​FKN Fusible Wire Wound Resistors Flameproof



Products

FKN Fusible Wire Wound Resistors Flameproof

Features

1. It is suitable for protecting circuit boards.

2. Noncombustible insulating coating;“Solven”t proof and resistant to high temperature.

3. Low temperature coefficient.

4. Uniform in fusing time.




Electrical And Mechanical Performance of FKN Fusible Wire Wound Resistors Flameproof​:


Characteristics

Standards

Test Methods

Resistance Tolerance

±5%(J)or±2% (G )

 

-

Resistance Temp. Coeff.

±300 ppm/°C;

 

-55°C ~200°C

 

Power Rating Load

Surface temp.275°C Max.ΔR/R≤±3%

Rated voltage for 30 minutes

Short Time Overioad

±2%

2.5times of rated wattage for 5 seconds.

 

Dielectric Withstanding Voltage

No evidence of mechanical damage or insulation breakdown.

 

Applying suitable voltage listed on

Dimensions for one minute.

 

Insulation Resistance

10,00MΩ

DC 100Vor 500Vmegger

 

Fusing Characteristics

 

Fusing time is within 60 seconds.

 

16 times of rated wattage

 

Solder-ability

Minimum95%coverage

235 ± 5°C for 2 seconds

Resistance to Soldering Heat

No evidence of mechanical damage.ΔR/R≤±1%

270±5°C for 10 ±1 seconds

350±10°C for3.5 ±0.5 seconds




Environmental Characteristics of FKN Fusible Wire Wound Resistors Flameproof​:


Characteristics

Standards

Test Methods

Temp. Cycle

△R/R≤±1%

 -55°C( 30 min.) —►Room Temp.( 3 min.) —► +200°C( 30 min.)

 —► Room Tenp.( 3 min.) / ( 5 cycles)

Load Life

△R/R≤±5%

Rated power load 90 minutes ON 30 minutes OFF

70°C 1000 hours

Moisture-proof Load Life

△R/R≤±5%

Rated power load 90 minutes ON 30 minutes OFF

40°C95%RH1000 hours



Nonflammability

 

not flamed


16 times of rated wattage for 5 min.




Dimensions of FKN Fusible Wire Wound Resistors Flameproof​:


Rated Wattage

D±1

L±1

H±3

d±0.1

Resistance Range(Ω)

Dielectric Withstanding Voltage

1W

4.0

9

28

0.65

0.1-20

350V

2W

5.0

11

28

0.8

0.1-100

500V

3W

5.5

13

38

0.8

0.1-200

500V

3W

6.5

19

38

0.8

0.1-200

500V






Derating Curve of FKN Fusible Wire Wound Resistors Flameproof​:


For resistors operated in ambient temperatures above 70°C , power rating must be derated in accordance with the curve below.






Surface Temperature Rise of FKN Fusible Wire Wound Resistors Flameproof​:

 





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