被漆功率瓷管電阻器 Coated High Power Ceramic Tube Resistors HR series ■過(guò)負(fù)荷能力強(qiáng)，熱穩(wěn)定性好，使用壽命長(zhǎng)Good overload and heat-durability capacity,the use life islonger then the others.■表面涂漆為綠色不然性面漆The resistors surface is coated ingreen. ■電器性能、機(jī)械性能Electricaland mechanical characteristics特性 Characteristics 規(guī)格值 Standards 測(cè)試方法 Test methods 阻值及阻值誤差 Resistance and Resistance tolerance 阻值允許誤差 Resistance tolerance ±5% (J) 阻值將根據(jù)如下表格中所施加的電壓值后進(jìn)行測(cè)量。Resistance shall be measured using the applied voltage values of the following table. Nominal resistance range 公稱阻值范圍(Ω) Maximum applied voltage 印加電壓(最高值)(V) R 1 0.1 100K≤R 30M 30 溫度系數(shù) Temperature coefficient ±300ppm 在常溫及常溫 100℃時(shí)分別測(cè)量電阻并計(jì)算每度的阻值變化率。Test the resistance value at normal temperature and normal temperature added 100℃,calculate per℃ resistance value change rate . 額定功率 Power rating load △R/R≦± (1%＋0.05Ω) 表面溫升(temperature) 350℃ Max. 在受試電阻上加30分鐘的額定電壓the power rating is applied to the resistor kept horizontally for 30 min. 短時(shí)間過(guò)負(fù)荷 Short-time overload △R/R≦± (2% 0.05Ω) 10倍額定電壓測(cè)試5秒。At 10× rated voltage for 5 seconds. 絕緣阻值 Insulation resistance ≥100MΩ DC500V 絕緣電壓 Dielectric withstanding voltage 無(wú)火花、燒損或絕緣破壞等異?，F(xiàn)象。 Without damage by flash-over, fire. or breakdown, etc. ≥AC2000V，60秒（sec.） 端子強(qiáng)度 Terminal strength 無(wú)機(jī)械損傷 no evidence of mechanical damage 張力(Pull)：196N ， 30± 5 秒seconds 電阻體強(qiáng)度 Resistor strength 無(wú)機(jī)械損傷 no evidence of mechanical damage 294N，30± 5秒seconds ■耐候性Environmentalcharactaristics特性 Characteristics 規(guī)格值 Standards 測(cè)試方法 Test methods 耐熱性 Heat resistance △R/R≦± (1% 0.05Ω) 在375±10℃錫爐中浸2~3秒 Immerge into 375±10℃ tin stove for 2~3 seconds. 熱沖擊 Thermal shock △R/R≦± (2% 0.05Ω) -55℃/30分鐘（min.）→ 25℃/15分鐘（min.）→ 125℃/30分鐘（min.）→ 2515分鐘（min. 共5個(gè)循環(huán) total 5 cycles. 耐溫負(fù)荷壽命 Power rating load △R/R≦± (5% 0.05Ω) 在溫度為40±2℃，相對(duì)濕度為90~95%的恒溫恒濕箱中，施加額定電壓或最大工作電壓（取較小者）共1000小時(shí)（通1.5小時(shí)，斷0.5小時(shí)）。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. 耐溫負(fù)荷壽命 Load life in heat △R/R≦± (5% 0.05Ω) 在70±2℃恒溫恒濕箱中施加額定電壓或最大工作電壓（取較小者）1000小時(shí)（通1.5小時(shí)，斷0.5小時(shí)）。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℃. ■規(guī)格Standards ●形狀·尺寸Configuration(mm) 備注Note：具體規(guī)格尺寸可以根據(jù)客戶的需求制作,同時(shí)也可以制作一管多個(gè)阻值，也可按客戶要求取消固定支架。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.