险丝型金属皮膜电阻器.doc

FUSIBLE METAL FILM RESISTOR保 险 丝 型 金 属 皮 膜 电 阻 器险丝型金属皮膜电阻器FUSE(1/4W.,1/2W,1W,2W,3WS)FUSIBLE METAL FILM RESISTOR STANDARD TYPE(1/4W,1/2W,1W,2W,3WS)特性 熔断之特性以保护广大之电子设备 小型及轻便易安装于精密轻巧之电路 温度系数低（200PPM/） 不燃性绝缘涂装 标准误差:5%（可承制10%）FEATURES THE ACCURATE FUSIBILITY IS APPLICABLE TOSAFETY CIRCUITS IN THE WIDE RANGE OF ELECTRONIC SETS。 SMALL IN SIZE，LIGHT IN WEIGHT。 LOW TEMPERATURE COEFFICIENT。（UNDER200PPM/） NON-COMBUSTIBLE INSULATING COAT STANDARD TOLERANCE:5%CONSTRUCTION 结构图A)高热传导瓷心B)高稳定性金属皮膜C)压合度良好之高信赖性端帽D)高绝缘及耐溶剂之环氧树脂涂漆E)符合MIL&EIA规定之标准色码带F）焊锡性良好的导线G)信赖性良好的焊接A)CERAMIC CORE(HIGH CONDUCTIVITY).B)METAL FILM(HIGH STABILITY).C)END CAP(HIGH RELIABILITY FITTING BY ORIGINAL CAP-PRESSING METHOD).D)EPOXY RESIN(INSULATIVE LACQUER,SOLVENT-PROOF).E)COLOR CODE(PER MIL&EIA STANDARDS).F)LEAD WIRE（EXCELLENT SOLDERABILITY）。G)WELDING(LONG RELIABILITY GUARANTEE)电力特性(POWER CHARACTERISTIC) 定格电力(POWER RATED)项目ITEM(012)1/8W(025)1/4W(050)1/2W(100)1W(200)2W(300)3W最高使用电压MAX WORKING VOLTAGE150V200V250V300V350V350V最高断续过负荷MAX INTERMITTENCEOVERLOAD VOLTAGE额定电压3倍3TIME OF RATED VOLTAGE耐电压DIELECTRIC WITHSTANDINGVOLTAGE350V350V350V600V600V600V阻抗误差值RESISTANCE TOLERANCE(J5%)(J5%)(J5%)(J5%)(J5%)(J5%)阻抗值范围RESISTANCE RANGE()MIN1.01.01.01.01.01.0MAX1K1K1K1K1K1K负载轻减曲线 POWER DERATING CURVE -30 70 (1W,2W,3WS)(1/8W,1/4W,1/2W)150 100 80 60 40 20 0 -40 -10 20 50 80 110 140 170 200 周围温度（）AMBIENT TEMPERATURE（）保险丝型金属皮膜电阻器 FUSIBLE METAL FILM RESISTOR性项目CHARACTERISTICS规格值SPECIFICATIONS测试方法TEST METHODS直流阻抗值DC RESISTANCEJIS-C-5202 5.1J5%测试电压如下表TESTING VOLTAGERESISTANCE VOLTAGE MAX0.1 TO 99 1VDC100 TO 999 1.0 VDC温度特性 T.C.RTEMPERATURECOEFFICIENTJIS-C-5202 5.2200PPM/R2-R1 R1(T2-T1)*106(PPM/)R1:常温(T1)阻抗值RESISTANCE VALUE AT ROOM TEMPERATURE (T1)R2:常温+50(T2)阻抗值RESISTANCE VALUE VALUE AT ROOM TEMPERATURE+50(T2)温度循环TEMPERATURE CYCLINGJIS-C-5202 7.4阻抗值变化率(2%+0.05)以内,机械特性不可有损伤RESISTANCE CHANGE RATE IS (2%+0.05) MAX. WITH NO EVIDENCE OF MECHANICAL DAMAGE依下表所规定之温度连续5次步骤STEP温度TEMPERATURE放置时间TIME（MIN）1-253302ROOM TEMP10-153852304ROOM TEMP10-15耐电压DIELECTRIC WITHSTANDING VOLTAGE JIS-C-5202 5.7涂装不可烧损,绝缘不可破坏NO EVIDENCE OF FLASHOVER MECHANICAL DAMAGE,ARCING OR INSULATION BREAKDOWN.电阻两端导线置于金属V型槽上依特性表之电压规定印加60秒RESISTORS SHALL BE CLAMPED IN THE TROUGH OF A 90 METALLIC V-BLOCK AND SHALL BE TEST AT SPECIFIED IN THE ABOVE LIST FOR 60 SECONDS短时间过负荷SHORTTIMEOVER LOADJIS-C-5202 5.51/4W,1/8W1/2W(2%+0.05)额定电压*2.5倍测试5秒PERMANENT RESISTANCE CHANGE AFTER THE APPLICATION OF A POTENTIAL OF 2.5 TIME R C W V FOR 5 SECONDS.1W2W/3WS(1%+0.05)断续过负荷PULSE OVERLOADJIS-C-5202 5.8阻抗值变化率(2%+0.05)以内,机械特性不可有损伤RESISTANCE CHANGE RATE IS (2%+0.5)MAX WITH NO EVIDENCE OF MECHANICAL DAMAGE.额定电压*3倍(交流电压)测试1秒停止25秒,测试10000次RESISTANCE CHANGE AFTER 10000 CYCLES(1 SECOND ON, 25SECONDS OFF) AT 3 TIME R C W V 湿度寿命LOAD LIFE IN HUMIDITY JIS-C-5202 7.9阻抗值变化率(5%+0.05)以内,机械特性不可有损伤RESISTANCE CHANGE RATE IS (5%+0.05) MAX.WITH NO EVIDENCE OF MECHANICAL DAMAGE.温度402,相对湿度90-95%于恒温恒湿箱中,加额定直流电压测试1.5小时停止0.5小时测试1000小时RESISTANCE CHANGE AFTER 1000HOURS(1.5 HOURS ON,0.5 HOURS OFF) AT RATED VOLTAGE IN A HUMIDITY CHAMBER CONTROLLED AT 402AND 90-95% RELATIVE HUMIDITY温度寿命LOAD LIFEJIS-C-5202 7.10阻抗值变化率(5%+0.05)以内,机械特性不可有损伤RESISTANCE CHANGE RATE IS (5%+0.05) MAX.WITH NO EVIDENCE OF MECHANICAL DAMAGE.温度702,恒温箱中,以额定电压测试1.5小时停止0.5小时测试1000小时RESISTANCE CHANGE AFTER 1000HOURS OPERATING AT RATED VOLTAGE WITH DUTY CYCLE OF1.5 HOURS ON,0.5 HOURS OFF AT 702耐湿性HUMIDITY JIS-C-5202 7.4阻抗值变化率(5%+0.05)以内,机械特性不可有损伤RESISTANCE CHANGE RATE IS (5%+0.05) MAXWITH NO EVIDENCE OF MECHANICAL DAMAGE.温度402,相对湿度90-95%于恒温恒湿箱中不加电压,连续放置240小时TEMPERATURE RESISTANCE CHANGE AFTER A 240 HOURS EXPOSURE IN A HUMIDITY TEST CHAMBER CONTROLLED AT 402 AND 90-95% RELATIVE HUMIDITY.耐热性RESISTANCE TOSOLDERING HEATJIS-C-5202 6.4阻抗值变化率(1%+0.05)以内,机械特性不可有损伤RESISTANCE CHANGE RATE IS (1%+0.05) MAXWITH NO EVIDENCE OF MECHANICAL DAMAGE.将电阻两端导线浸入锡炉约3.2至4.8mm依下表规定实施TEMPERATUREDIP TIME350103.00.5sec2605101sec焊锡性SOLDERABILITYJIS-C-5202 6.595%覆盖于导线上95%COVERAGE MIN.锡炉温度:2305浸锡时间:30.5secTEST TEMPERATURE OF COLDER: 2305DWELL TIME IN SOLDER: 30.5sec熔断性FUSINGCHARACTERISTICS阻抗值范围RESISTANCE RANGE熔断电压TESTING VOLTAGE以熔断电压负载60秒WITH IN 60 SECONDS AT TESTING VOLTAGE.备注:保险丝电阻必需在规定时间内,使电流降低至初始电流的1/50.NOTE:FUSING TIME SHALL BE MEASURED AS THE DURATION