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低温度系数,精度高,高频性能好涂层为淺藍色环氧树脂,防水性好。功率:1/8W - 5WS 精度:±1%,±5% 0.1% 0.01% Products 产品 Metal Film Fixed Resistors 金属膜固定电阻器 Features 特点 Low temperature coefficient ,high precision ,and good high frequency performance .低温度系数、精度高、高频性好。 Operating ambient temperature 使用环境温度:-55°C ~+155°C Film the metal in Vacuum ,the surface coating is green resin with the good waterproof . 真空溅射金属皮膜,涂层为湖绿色环氧树脂,防水性好。 Resistance tolerance 阻值误差 : ±5%,±1%. 0.1% 0.01% Part No. 料号 Power 功率 Resistance tolerance 阻值范围 Dimensions 尺寸 Max. working Voltage 最大工作电压 Max. overload voltage 最大负荷电压 Max. insulation voltage 最高绝缘电压 L±1 D±0.5 d±0.05 CMF016 MFR016 1/8W 1/4W 0R~22M 3.5 1.7 0.41 150V 300V 300V CMF014S MFR014S 1/4WS 0R~22M 3.5 1.7 0.41 150V 300V 300V CMF014 MFR014 1/4W 0R~22M 6.0 12.3 0.45 250V 500V 500V 0.52 CMF12S MFR12S 1/2WS 0R~22M 6.0 2.3 0.45 250V 500V 500V 0.52 MFR012 1/2W 0R1~22M 9.0 3.2 0.58 350V 700V 700V MFR01S 1WS 0R1~22M 9.0 3.2 0.58 350V 700V 700V MFR01B 1W 0R1~22M 11.0 4.5 0.75 500V 1000V 1000V MFR02S 2WS 0R1~22M 11.0 4.5 0.75 500V 1000V 1000V MFR02B 2W 0R1~22M 15.0 5.0 0.75 500V 1000V 1000V MFR03S 3WS 0R1~22M 15.0 5.0 0.75 500V 1000V 1000V MFR03B 3W 0R1~22M 24.0 8.0 0.75 700V 1200V 1000V MFR05S 3WS 0R1~22M 24.0 8.0 0.75 700V 1200V 1000V Test Item 测试项目 Test Condition 测试条件 Performance 性能 Temperature Coefficient 温度系数 The resistance value at normal temperature and normal temperature added 100°C, calculate per °C resistance value change rate. 在常温及常温+100°C时分别测量电阻值并计算每度的阻值变化。 ±300ppm/°C Short Time overload 短时间过负荷 10×rated voltage or Max. overload voltage(get the lower) for 5 seconds. 施加10倍额定功率的电压或最高负荷电压(取较小者)5秒。 R≤±(0.5%R0+0.05Ω) Pulse overload 断续过负荷 At 4×rated voltage or Max. pulse overload voltage(get the lower)cycle 10000±200times(1second on,25 seconds off).4倍额定电压或最高负荷断续电压(取较小者)测试1秒,停25秒,循环10000±200次。 R≤±(1%R0+0.05Ω) Resistance to soldering Heat 耐焊接热 Immerge into the 350±10°C tin stove for 2~3seconds. 在350±10°C锡炉中浸入2~3秒。 R≤±(0.5%R0+0.05Ω) Solderability 可焊性 Immerge into the 245±3°C tin stove for 2~3seconds. 在245±3°C锡炉中浸入2~3秒。 The soldering area is over 95%焊锡面积覆盖率达95%以上 Temperature cycling 温度循环 At -55°C for 30 min. ,then at+25°C for 10~15°C,then at +125°C for 30 min., then at +25°C for 10~15 min., total 5cycles. 在-55°C时放置30分钟,然后在+25°C时放置10~15分钟,然后再在+275°C时放置30分钟,接着在+25°C时放置10~15分钟,共循环5次。 R≤±(0.5%R0+0.05Ω) Load life in humidity 耐湿负荷寿命 Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 40±2°C and 90~95% relative humidity. 在温度为40±2°C,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(通电0.5小时,断电0.5小时) R≤±(2%R0+0.05Ω) Load life in heat 耐湿负荷寿命 Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 70±2°C. 在温度为70±2°C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(通电0.5小时,断电0.5小