检测认证人脉交流通讯录
深圳波纹电阻特点 威源供
被漆功率瓷管电阻器Coated High Power Ceramic Tube Resistors HR series
■过负荷能力强，热稳定性好，使用寿命长Good overload and heat-durability capacity,the use life is longer then the others.
■表面涂漆为绿色不然性面漆 The resistors surface is
coated in green.
阻值及阻值误差
Resistance and Resistance tolerance
阻值允许误差
Resistance tolerance
±5% (J)
阻值将根据如下表格中所施加的电压值后进行测量。Resistance shall be measured using the applied voltage values of the following table.
Nominal resistance range
公称阻值范围(Ω)
Maximum applied voltage
印加电压(比较高值)(V)
R<1
0.1
100K≤R<30M
30
温度系数
Temperature coefficient
±300ppm
在常温及常温+100℃时分别测量电阻并计算每度的阻值变化率。Test the resistance value at normal temperature and normal temperature added 100℃,calculate per℃ resistance value change rate .
额定功率
Power rating load
△R/R≦± (1%＋0.05Ω)
表面温升(temperature) 350℃Max.
在受试电阻上加30分钟的额定电压the power rating is applied to the resistor kept horizontally for 30 min.
短时间过负荷
Short-time overload
△R/R≦± (2%+0.05Ω)
10倍额定电压测试5秒。At 10× rated voltage for 5 seconds.
绝缘阻值
Insulation resistance
≥100MΩ
DC500V
绝缘电压
Dielectric withstanding voltage
无火花、烧损或绝缘破坏等异常现象。
Without damage by
flash-over, fire. or
breakdown, etc.
≥AC2000V，60秒（sec.）
端子强度
Terminal strength
无机械损伤
no evidence of mechanical damage
张力(Pull)：196N ， 30± 5 秒seconds
电阻体强度
Resistor strength
无机械损伤
no evidence of mechanical damage
294N，30± 5秒seconds
■耐候性Environmental charactaristics
特性
Characteristics
规格值
Standards
测试方法
Test methods
耐热性
Heat resistance
△R/R≦± (1%+0.05Ω)
在375±10℃锡炉中浸2~3秒
Immerge into 375±10℃ tin stove for 2~3 seconds.
热冲击
Thermal shock
△R/R≦± (2%+0.05Ω)
-55℃/30分钟（min.）→+25℃/15分钟（min.）→+125℃/30分钟（min.）→+2515分钟（min.
共5个循环 total 5 cycles.
耐温负荷寿命
Power rating load
△R/R≦± (5%+0.05Ω)
在温度为40±2℃，相对湿度为90~95%的恒温恒湿箱中，施加额定电压或比较大工作电压（取较小者）共1000小时（通1.5小时，断0.5小时）。Overload rated voltage or Max.working voltage (get the lower) for 1000 hours (1.5 hours on and half-hour off ) at the 40±2℃ and 90~95% relative humidity.
耐温负荷寿命
Load life in heat
△R/R≦± (5%+0.05Ω)
在70±2℃恒温恒湿箱中施加额定电压或比较大工作电压（取较小者）1000小时（通1.5小时，断0.5小时）。Overload rated voltage or Max.working voltage (get the lower ) for 1000 hours (1.5 hours on and half-hour off) at the 70±2℃.
备注Note：具体规格尺寸可以根据客户的需求制作,同时也可以制作一管多个阻值，也可按客户要求取消固定支架。We can according to customer’s requirement to customize the specification and dimension, also can produce multiple resistance values of one ceramic tube or cancel the fixed plank
