Product name: RXG-T Adjustable silicon cemented wite wound resistors
Type: RXG-T
Product introduction: RXG series cement-coated wire wound resistor is covered with dope which has inflammability and can resistance to high temperature, it has the characteristic of good ability and easy to use. The resistor can be classed to settled form and adjustive form, and the adjustive form can move right-and-left. The settled form has two or more terminals, its thickness can adjust accord to power.
Purpose: Cement-coated wire wound resistor is used in transducer trig, elevator, derrick and as load resistor widely.
■ Electrical and Mechanical specifications
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Characteristics |
Limits |
Test methods |
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|
resistance and resistance tolerance |
1Ω≤R±5%（J) , 1Ω>R±10%（K） |
JIS-C-5202 5-1 |
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Power rating load |
5~200W≤275℃
the highest temperature on the surface |
JIS-C-5202 5-4 |
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|
Short-time overload |
ΔR≤±（2%R+0.05Ω）
no evidence of mechanical damage |
JIS-C-5202 5-5
1000% rated power 5 seconds |
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|
Insulation resistance |
R≥100MΩ 1min |
JIS-C-5202 5-6 DC500V |
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Dielectric withstanding voltage |
ΔR≤±（0.1%R+0.05Ω）
no evidence of mechanical damage or insulation breakdown |
JIS-C-5202 5-7 |
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|
Temperature coefficient |
±260PPM/℃ |
JIS-C-5202 5-2 b |
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|
Terminal strength |
not loosely and no evidence of mechanical damage |
JIS-C-5202 6-1(2) |
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|
Resistor strength |
no evidence of mechanical damage |
JIS-C-5202 6-2 |
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|
Vibration |
ΔR≤±（0.1%R+0.05Ω）
no evidence of mechanical damage |
JIS-C-5202 6-3
1.5mm 10~55 Hz/ 1Minute |
|
|
Solderability |
95% coverage min. |
JIS-C-5202 6-5
270℃ 5 seconds |
■ Environmental specifications
|
Characteristics |
Limits |
Test methods |
|
|
Heat resistance |
no deterioration of protective coatings or markings |
JIS-C-5202 7-2
350℃ 2hours |
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|
Thermal shock |
no evidence of mechanical damage |
JIS-C-5202 7-3
After 30minutes rating load , 55℃ 15mintues |
|
|
Humidity |
ΔR≤±（3%R+0.05Ω）, ≥10MΩ
no deterioration of protective coatings or markings |
JIS-C-5202 7-5 DC100 40℃ 95%RH 500hours |
|
|
Humidity Load life |
ΔR≤±（3%R±0.05Ω）
no evidence of mechanical damage
no deterioration of protective coatings or markings |
JIS-C-5202 7-10 100%负荷 rated power load 90 min ON 30 min OFF 500hours |
■ Power Derating Curve
|
environment temperature |
0~20℃ |
above 20℃ |
|
pow derating |
100% |
see the fig. |
■ classified standard
● how to order
● type explanation
RXG is the wire-wound cement-coating fixed resistor
RXG(T)is the wire-wound cement-coating adjustable resistor
● structure explanation
RXG-A、RXG（T）-A not using the porcelain sheet to separate the resistor body from the installation frame.
RXG-B、RXG（T）-B using the porcelain sheet to separate the resistor body from the installation frame.
RXG-D using the porcelain sheet on both of the two terminals and they are
series-connected by a screw bolt.
