FKN-H Fusible Wire Wound Resistors Over Current Protection Features: 1. Fusing current and fusing time can be consulted between buyers and the manufacturer before producing. 2. Noncombustible insulating coating;“Solvent” proof and resistant to high temperature. 3. Uniform in fusing time. 4. Excellent anti-surge characteristics according to IEC 61000-4-5. 5. Suitable for the application to half short-circuit of a charger.
FKN-H Fusible Wire Wound Resistors Over Current Protection
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Products |
FKN-H Fusible Wire Wound Resistors Over Current Protection |
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Features |
1. Fusing current and fusing time can be consulted between buyers and the manufacturer before producing. 2. Noncombustible insulating coating;“Solvent” proof and resistant to high temperature. 3. Uniform in fusing time. 4. Excellent anti-surge characteristics according to IEC 61000-4-5. 5. Suitable for the application to half short-circuit of a charger. |
Electrical And Mechanical Performance of FKN-H Fusible Wire Wound Resistors Over Current Protection:
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Characteristics |
Standards |
Test Methods |
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Resistance Tolerance |
±5%(J)
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- |
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Resistance Temp. Coeff. |
<4500 ppm/°C
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-55°C ~200°C
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Power Rating Load |
Surface temp.275°C Max.ΔR/R≤±2% |
Rated voltage for 30 minutes |
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Short Time Overioad |
±2% |
10times of rated wattage for 5 seconds. |
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Dielectric Withstanding Voltage |
No evidence of mechanical damage or insulation breakdown.
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AC 350V for 1 minutes
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Insulation Resistance |
10,00MΩ |
DC 100V megger
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Fusing Characteristics
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Fusing time is within 60 seconds.
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25 times of rated wattage
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Solder-ability |
Minimum95%coverage |
235 ± 5°C for 2 seconds |
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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-H Fusible Wire Wound Resistors Over Current Protection:
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Characteristics |
Standards |
Test Methods |
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Temp. Cycle |
△R/R≤±1% |
-55°C( 30 min.) —►Room Temp.( 3 min.) —► +200°C( 30 min.) —► Room Tenp.( 3 min.) / ( 5 cycles) |
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Load Life |
△R/R≤±5% |
Rated power load 90 minutes ON 30 minutes OFF 70°C 1000 hours |
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Moisture-proof Load Life |
△R/R≤±5% |
Rated power load 90 minutes ON 30 minutes OFF 40°C95%RH1000 hours |
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Nonflammability
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not flamed
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16 times of rated wattage for 5 min.
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Dimensions of FKN-H Fusible Wire Wound Resistors Over Current Protection:
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Rated
Wattage |
D |
L±1 |
H±3 |
d±0.1 |
Resistance Range(Ω) |
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1W |
3.5 Max.
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9 |
28 |
0.65 |
1~20
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Derating Curve of FKN-H Fusible Wire Wound Resistors Over Current Protection:
For resistors operated in ambient temperatures above20°C , power rating must be derated in accordance with the curve below.
Surface Temperature Rise of FKN-H Fusible Wire Wound Resistors Over Current Protection:
