Products
产品

 Metal Film Fixed Resistors
金属膜固定电阻器

Features
特点

1. Low temperature coefficient ,high precision ,and good high frequency performance .低温度系数、高、高频性好。
2. Operating ambient temperature 使用环境温度：-55°C ~+155°C
3. 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。
4. Resistance tolerance 阻值误差 : ±5%，±1%.

Part No.
料号

Power
功率

Resistance tolerance
阻值范围

Dimensions 尺寸

Max. working
Voltage
工作电压

Max. overload voltage
负荷电压

Max. insulation
voltage
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)