价格:未填
品牌:建宏
供应:1000000
发货:10天内
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 iscoated in green. ■电器性能、机械性能Electrical and mechanical characteristics 特性 Characteristics 规格值 Standards 测试方法 Test methods 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(最高值)(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，施加额定电压或最大工作电压（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最大工作电压（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℃. ●形状 尺寸Configuration(mm) 功率 Power 尺寸Dimensions(mm) 阻值范围 Resistance range 规格 Standards L1 1 L2 2 L3 2 L4 2 H1 1 H2 2 W 1 T 0.5 F 0.3 10W 28 47 57 67 25 39 12 5.2 3.0 0R1-2K5 A/B 20W 39 60 80 100 34 51 20 5.2 3.0 0R1-10K A/B 25W 39 60 80 100 34 51 20 5.2 3.0 0R1-10K A/B 30W 59 80 100 120 34 51 20 5.2 3.0 0R1-16K A/B 40W 76 97 117 137 34 51 20 5.2 3.0 0R1-20K A/B 50W 78 102 122 142 43.5 65 28 6.2 4.5 0R1-28K A/B