CF-碳膜固定电阻器
☆ 独特的稳定性；
☆ 标准的容许误差：±2%、±5%。
※形名 (例)
※电力轻减曲线
※额定电压
※构造图
|
No. |
构造名称 Item |
内 容 Material |
|
1 |
基体磁器 Ceramic core |
使用高含铝量的瓷器棒。 High alumina ceramic is used. |
|
2 |
电阻体 Resistance element |
电阻体的成份系使用碳素皮膜。 The resistor element shall consist of Carbon film. |
|
3 |
端子 Terminal |
铁帽。 Tinned iron cap. |
|
4 |
连接 Connection |
导线对铁帽须以电气熔接。 The lead wire, which is plated with solder, shall be mounted to the caps by welding process. |
|
5 |
导线 Lead wire |
镀锡铜线或镀锡铜包刚线。 Tinned copper lead wire or cp lead wire. |
|
6 |
下涂涂装 Undercoat painting |
电气绝缘漆。 Electric insulation varnish. |
|
7 |
上涂涂装 Finishing painting |
使用环氧树脂涂料。 Epoxy resin is used. |
|
8 |
表示 Indication |
色码。 Color code. |
※外型寸法
单位：mm
|
种 类 Type |
尺 寸 Dimensions |
||||
|
普通型 Normal Size |
小型化 Small Size |
L |
ψD |
ψd |
H |
|
1/8W(1/6W) |
1/4WS |
3.5±0.5 |
1.7±0.3 |
0.40±0.05 |
27±3.0 |
|
1/4W |
1/2WS |
6.0±0.5 |
2.3±0.3 |
0.45±0.05 |
27±3.0 |
|
1/2W |
1WS |
9.0±1.0 |
3.2±0.5 |
0.52±0.05 |
27±3.0 |
|
1W |
2WS |
11.0±1.0 |
4.5±0.5 |
0.70±0.05 |
35±3.0 |
|
2W |
3WS |
15.0±1.0 |
5.0±0.5 |
0.70±0.05 |
32±3.0 |
|
3W |
5WS |
17.5±1.0 |
6.5±1.0 |
0.75±0.05 |
30±3.0 |
※定格
|
种类 Type |
额定 电力 Rated power |
最 高 使用电压 Maximum working voltage |
最 高 过负荷电压 Maximum overload voltage |
最 高 断续电压 Maximum pulse voltage |
耐电压 Dielectric withstanding voltage |
电阻值范围 Resistance range |
使用温度范围 Operating temperature range |
|
|
Normal size |
CF1/8W |
0.125W |
200V |
400V |
500V |
300V |
2.2Ω～4.7MΩ |
-55-155℃ |
|
CF1/4W |
0.25W |
300V |
500V |
750V |
500V |
2.2Ω～4.7MΩ |
||
|
CF1/2W |
0.5W |
350V |
700V |
1000V |
700V |
2.2Ω～5.1MΩ |
||
|
CF1W |
1W |
500V |
800V |
1000V |
800V |
2.2Ω～5.1MΩ |
||
|
CF2W |
2W |
500V |
1000V |
1000V |
800V |
2.2Ω～5.1MΩ |
||
|
CF3W |
3W |
500V |
1000V |
1000V |
800V |
2.2Ω～5.1MΩ |
||
|
Small size |
CF1/4WS |
0.25W |
200V |
400V |
500V |
300V |
2.2Ω～4.7MΩ |
|
|
CF1/2WS |
0.5W |
350V |
700V |
750V |
500V |
2.2Ω～4.7MΩ |
||
|
CF1WS |
1W |
500V |
800V |
1000V |
700V |
2.2Ω～5.1MΩ |
||
|
CF2WS |
2W |
500V |
1000V |
1000V |
800V |
2.2Ω～5.1MΩ |
||
|
CF3WS |
3W |
750V |
1000V |
1000V |
800V |
2.2Ω～5.1MΩ |
||
※特性
|
项目 Item |
规格值 Performance |
试验方法 (依据JIS C 5201) Test methods (Conform to JIS C 5201) |
||||
|
阻值 Resistance |
规定的容许差内 Within specified tolerance |
测试位置距本体10mm±1mm处 Measuring points are at 10mm±1mm for the end cap |
||||
|
温度系数 Temperature coefficient |
T.C.R 种类 Type |
±450 PPM/℃ |
-700 PPM/℃ |
-1000 PPM/℃ |
-1300 PPM/℃ |
R0 :室温(T0)所测量之电阻值。 R1 :室温+100℃(T1)后所测量之电阻值。 R0 : Resistance value at room temp. (T0). R1 : Resistance value at room temp. plus 100℃ (T1). |
|
CF1/6W (1/8W) ＆ CF1/4WS |
Under 47KΩ |
51K~ 100KΩ |
110K~ 330KΩ |
Over 360KΩ |
||
|
CF1/4W ＆Over |
Under 100KΩ |
110K~ 1MΩ |
1.1M~ 2.2MΩ |
Over 2.4MΩ |
||
|
短时间过负荷 Short time overload |
△R≤±(1%+0.05Ω) |
额定电压X 2.5倍, 5秒。不可超过最高过负荷电压 Rated voltage X 2.5 times, 5s But not to exceed maximum overload voltage. |
||||
|
焊锡耐热性 Resistance to soldering heat |
△R≤±(1%+0.05Ω)
|
在350±10℃锡炉中浸入2~3秒, 试验后放置3小时。 Immersion in 260±5℃ tin stove for 2~3 seconds, After test leave for 3h. |
||||
|
可焊性 Solder ability |
焊锡面覆盖95%以上。 The area of soldering is over 95% |
在235±5℃锡炉中浸入2±0.5秒 Immersion in 235±5℃ tin stove for 2±0.5 seconds |
||||
|
温度循环 Temperature cycle |
△R≤±(1%+0.05Ω) |
-55℃(30mine.)/+125℃(30mine.), 5 cycles |
||||
|
耐湿负荷寿命 Load life in humidity |
△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的工作电压（取较小者）,共1000小时；通电1.5小时，断电0.5小时） Overload rated voltage or Max.working voltage(get the lower)for1000hours(1.5hours on and half-hours off)at the 40±2℃and90～95%relative humidity. |
||||
|
负荷寿命 Load life |
△R≤±(5%+0.05Ω) |
在70±3℃的恒温恒湿箱中，施加额定电压或最大的工作电压（取较小者）,共1000小时；通电1.5小时，断电0.5小时）。 Overload rated voltage or Max.working voltage(get the lower)for1000hours(1.5hours on and half-hours off)at the 70±3℃
|
||||
