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FKN-H Fusible Wire Wound Resistors Over Current Protection
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.
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Product Description
FKN-H Fusible Wire Wound Resistors Over Current Protection
|
Products |
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. |
Electrical And Mechanical Performance of FKN-H Fusible Wire Wound Resistors Over Current Protection:
|
Characteristics |
Standards |
Test Methods |
|
Resistance Tolerance |
±5%(J)
|
- |
|
Resistance Temp. Coeff. |
<4500 ppm/°C
|
-55°C ~200°C
|
|
Power Rating Load |
Surface temp.275°C Max.ΔR/R≤±2% |
Rated voltage for 30 minutes |
|
Short Time Overioad |
±2% |
10times of rated wattage for 5 seconds. |
|
Dielectric Withstanding Voltage |
No evidence of mechanical damage or insulation breakdown.
|
AC 350V for 1 minutes
|
|
Insulation Resistance |
10,00MΩ |
DC 100V megger
|
|
Fusing Characteristics
|
Fusing time is within 60 seconds.
|
25 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-H Fusible Wire Wound Resistors Over Current Protection:
|
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-H Fusible Wire Wound Resistors Over Current Protection:
|
Rated
Wattage |
D |
L±1 |
H±3 |
d±0.1 |
Resistance Range(Ω) |
|
1W |
3.5 Max.
|
9 |
28 |
0.65 |
1~20
|
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:
