Trapezium Aluminum Housed Wirewound Resistor Features: 1.Aluminum crust surface with good performance in heat radiation, suitable for cooling plate installation, can be used in the atrocious environment 2.Small size, high power load. 3.High insulating capacity, encapsulation by non-flame inorganic material good performance in vibration。 4.Multi connection form will be easily to fix 5.Widely used in Power supply, Transducer, Elevator, Arena audio and high requirement equipment Industry. 6.Resistance tolerance:±1%,±2%,±5%,±10%.
Trapezium Aluminum Housed Wirewound Resistor
Product |
Trapezium Aluminum Housed Wirewound Resistor |
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Features |
1.Aluminum crust surface with good performance in heat radiation, suitable for cooling plate installation, can be used in the atrocious environment |
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Test Item |
Test Condition |
Performance |
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Temperature Coefficient |
The resistance value at normal temperature and normal temperature added 100°C, calculate per °C resistance value change rate. |
±300ppm/°C |
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Short Time overload |
10×rated voltage or Max. overload voltage(get the lower) for 5 seconds. |
R≤±(2%R0+0.05Ω) |
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Resistance to soldering Heat |
Immerge into the 350±10°C tin stove for 2~3seconds. |
R≤±(1%R0+0.05Ω) |
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Solderability |
Immerge into the 245±3°C tin stove for 2~3seconds. |
The soldering area is over 95%. |
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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) |
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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) |
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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) |
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Terminal strength |
Pull:10N |
R≤±(2%+0.1Ω) |
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Vibration |
Frequency :10~55Hz. |
R≤±(2%R0+0.1Ω) |
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Nonflammability |
Respectively load AC voltage by5,10,16times rated power for 5 minutes. |
No visible flame |
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Specifications and Dimensions |
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Part No. |
Power |
Resistance Range |
Dimensions |
Max. |
With- |
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L1±1.5 |
L2±1.5 |
L3±1.5 |
H±1 |
W±1 |
A±0.5 |
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TRX40B |
40W |
0R5-2K2 |
65 |
74 |
95 |
18 |
30 |
5 |
300V |
450V |
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TRX60B |
60W |
0R5-4K7 |
75 |
84 |
100 |
18 |
30 |
5 |
400V |
600V |
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TRX80B |
80W |
1R-6K |
110 |
125 |
140 |
20 |
40 |
5 |
500V |
750V |
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TRX100 |
100W |
1R5-8K |
135 |
150 |
165 |
20 |
40 |
5 |
600V |
900V |
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TRX1800 |
1800W |
3R-35K |
540 |
565 |
580 |
50 |
100 |
5 |
2300V |
3300V |
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Remark: The power and dimensions can be especially customized for customers. |