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Electrical Components Wirewound Fuse Resistor
Wirewound Fuse Resistor
1,Good heat-durability. low temperature coefficient, low noise, high load power; nonflammability.
2,Can be Fusible during the stated time for protecting the circuit once wording at the required overload voltage.
3,Operating ambient temperatur: -55℃~+275℃.
4,The surface is gray white nonflammable coating and indicate a white ring at the behind of the precision color ring.
5,Resistance tolerance:±5%,±10%.
A, High heat exchanged Ceramic core.
B, Nickel Chrome or nickel an copper alloy.
C, Iron Cap.
D, Sillicon resin coating.
E, Color Ring.
Dimensions and Voltage Performance:
Part No. |
Power |
Resistance range |
Dimensions |
Max. working voltage |
Max.overload voltage |
Max.insulation voltage |
||
L±1 |
D±0.5 |
d±0.05 |
||||||
FKN012 |
1/2W |
0R1-10R |
9.0 |
3.2 |
0.58 |
150V |
400V |
250V |
FKN01B |
1W |
0R1-10R |
9.0 |
3.2 |
0.75 |
150V |
400V |
250V |
FKN02B |
2W |
0R1-15R |
11.0 |
4.5 |
0.75 |
150V |
400V |
350V |
FKN03B |
3W |
0R1-22R |
15.0 |
5.0 |
0.75 |
350V |
600V |
500V |
FKN04B |
4W |
0R1-27R |
17.0 |
6.0 |
0.75 |
350V |
600V |
500V |
FKN05B |
5W |
0R127R |
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 |
FKN10B |
10W |
0R1-56R |
52.0 |
8.0 |
0.75 |
750V |
800V |
1000V |
Fusing Characteristics:
Fusing Spec. |
Multiple Rated power |
Rated resistamce 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 |
|
|
|
Performance Test:
Test Item |
Test Condition |
Performance |
Temperature coefficient |
Test the resistance value at normal temperature and normal temperature added 100℃,calculate per℃ resistance value change rate . |
±300ppm/℃ |
Short time overload |
1/2~4W:According 5 times rated voltage, 5~10W:According 10 times rated power to account the voltage or Max.overload voltage (get the lower) for 5 seconds. |
ΔR≤±(2%R0+0.05Ω) |
Pulse overload |
At 4 × rated voltage or Max. pulse overload voltage (get the lower) cycle 10000±200 times(1 second on, 25 seconds off ). |
ΔR≤±(1%R0+0.05Ω) |
Resistance to soldering heat |
Immerge into 350±10℃ tin stove for 2~3 seconds. |
ΔR≤±(1%R0+0.05Ω) |
Solderability |
Immerge into 245±3℃ tin stove for 2~3 seconds. |
The area of soldering is over 95% |
Temperature cycling |
At -55℃ for 30 min, then at +25℃ for 10~15 min, then at +125℃ for 30 min, then at +25℃ for 10~15 min, total 5 cycles. |
ΔR≤±(1%R0+0.05Ω) |
Load life in humidity |
Overload rated voltage or ing voltage (get the lower) for 1000 hours (1.5 hours on and half-hour off ) at the 40±2℃ and 90~95% relative humidity. |
ΔR≤±(5%R0+0.05Ω) |
Load life in heat |
Overload rated voltage or ing voltage (get the lower ) for 1000 hours (1.5 hours on and half-hour off) at the 70±2℃. |
ΔR≤±(5%R0+0.05Ω) |
Nonflammability |
Respectively load AC voltage by 5,10,16 times rared power for 5 minutes. |
No visible flame. |
Part No.Regulation:
FKN |
01B |
J |
C |
T520 |
10R00 |
Product Name |
Power |
Tol. |
Fusing Spec. |
Forming |
Ohm |
|
Wirewound Fuse Resistors
|
012=1/2W 01B=1W 02B=2W 10B=10W |
G=±2% J=±5% K=±10% |
G C B J |
T520=T52 T710=T71 M001=M F001=F B001=B |
0R220=0.22Ω 10R00=10Ω 100R0=100Ω 1K000=1KΩ |
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