products |
sqk cement resistors |
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features |
1.good heat-durability, low temperature coefficient, low noise,
high load power, high insulating capacity. |
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rated power |
5w |
7w |
10w |
15w |
20w~25w |
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max. working voltage |
350v |
500v |
750v |
1000v |
1000v |
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dielectric withstanding voltage |
1000v |
1000v |
1000v |
1000v |
1000v |
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resistance tolerance |
j ± 5% |
j ± 5% |
j ± 5% |
j ± 5% |
j ± 5% |
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specifications of rx l type rx l型尺寸表 |
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power |
type |
dimensions 尺寸 |
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l±1.5 |
w±1 |
h±1.5 |
p±1.5 |
h±1 |
a±0.5 |
b±0.1 |
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15w |
l1 |
50 |
12.5 |
12 |
35 |
14 |
2 |
0.8 |
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l2 |
50 |
12.5 |
12 |
25 |
11 |
3 |
0.8 |
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20w |
l1 |
65 |
14 |
14 |
50 |
14 |
2 |
0.8 |
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l2 |
65 |
14 |
14 |
35 |
11 |
3 |
0.8 |
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test item |
test condition |
performance |
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short time overload |
δr≤±(2%r0+0.05ω) |
2.5×rcvw for 5 seconds. |
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load life in humidity |
δr≤±(5%r0+0.05ω) |
temperature resistance change after 1000 hours(1.5hours on and
0.5 hours off) at rcvw in a humidity chamber controlled at 40±2℃
and 90~95% relative humidity. |
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load life |
δr≤±(5%r0+0.1ω) |
permanent resistance change after 1000 hours operating at rcwv, with duty cycle of 1.5 hours on and 0.5 hours off at 25℃±2℃.在温度为25℃±2℃下以额定电压测试1000小时,其中以通电1.5小时,断电0.5小时进行。 |
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solderability |
95% coverage min |
test temperature of solder:235±5℃ |
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resistance to soldering heat |
δr≤±(1%r0+0.05ω) |
immerge into the 350±10°c tin stove by3.2~4.8mm length as the follow form. 将电阻两端导线浸入锡炉中3.2mm~4.8mm,如下表规定所示:
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nonflammability |
nonflammable |
respectively load ac voltage by 5,10,16 times rated power for 5
minutes. |
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note: we can according to customer’s requirements to customize
the specifications and dimensions .pls feel free to contact us. |
本产品的 功率特性为中功率, 标称阻值是10K--150K, 材料为有机实心, 营销方式是, 额定功率为10-50w(W), 型号是SQK, 允许偏差为±5%, 品牌是JDC, 制作工艺是膜式非线绕型, 外形为长方