Fixed Metal Film Resistors
金属膜电阻 MF Series
●●●●产品特点产品特点产品特点产品特点 Features Features Features Features
1.该产品的陶瓷基体是将Ni-Cr电阻原料通过真空镀膜法形成,并以优良的耐热
性耐气候性的涂料进行涂层.
The MF series are formed by depositing Ni-Cr base metal on a ceramic body
by vacuum deposit on techniques.The Resistor is protected by several
protective coatings to give ecxellent resistance to heat and moisture.
2.有1/6W到2W的各种规格,能符合各种需求
Five sizes are available:1/6W-2W.
3.使用寿命,耐气候特性均极为稳定.
Extremely stable device,with long life and durability.
4.符合无铅/RoHS要求
Lead-free and RoHS compliant.
●●●●外形及尺寸外形及尺寸外形及尺寸外形及尺寸 Dimensions Dimensions Dimensions Dimensions
unit:mm
类别 Style L D H d
1/6W,1/8W
1/4WS
1/4W
1/2WS
1/2W
1WS
1W
2WS
2W
注: 普通品本体颜色为蓝色,小型品为粉红色 3WS
Color of Body: Normal type is blue and Mini type is pink.
●●●●电气规格电气规格电气规格电气规格 Electrical Specifications Electrical Specifications Electrical Specifications Electrical Specifications
1/6W &1/8W 1/4WM &1/4W 1/2WM &1/2W 1WM & 1W 2WM & 2W 3WM
0.125W 0.25W 0.5W 1W 2W 3W
200V 250V 300V 500V 500V 500V
400V 500V 700V 1000V 1000V 1000V
150V 350V 600V 600V 600V 600V
B(±0.1%) 100Ω-511KΩ 100Ω-511KΩ 100Ω-511KΩ 100Ω-51KΩ 100Ω-51KΩ 100Ω-51KΩ
F(±1%) 0.1Ω-1MΩ 0.1Ω-1MΩ 0.1Ω-1MΩ 10Ω-100KΩ 10Ω-100KΩ 10Ω-100KΩ
工作电压Rated Continuous Working Voltage (RCWV)=√PR,高于最高工作电压以最高工作电压为准.
Lesser of √PR or maximum working voltage.
●●●●功率衰减曲线 功率衰减曲线 功率衰减曲线 功率衰减曲线 Power Derationg CurvePower Derationg CurvePower Derationg CurvePower Derationg Curve
环境温度超过70℃时的功耗值依照右图曲线
For resistors operated in ambient temperatures above
70°,power rating must be derated in accordance with
the right curve .
www.dzfude.com E-mail:fuanelectronics@163.com
类别 Style
70℃额定功率
Power at 70℃
最高工作电压
Maximum Working Voltage
最高负荷电压
Maximum Overload Voltage
绝缘电压
Dielectric Withstanding Voltage
阻值范围
Value Range
使用温度范围
Operation Temp.Range -55℃ ~ +155℃
0.75±0.05
0.65±0.05
- 11 -
9.0±0.5 3.5±0.5 28±2.0
15.0±1.0 5.0±0.5 33±2.0
6.5±0.5 2.3±0.2 28±2.0
0.54±0.05
0.42±0.05
3.4±0.2 1.7±0.2 28±2.0 0.4±0.05
11.0±1.0 4.5±0.5 35±2.0
卓越源自品质
Ambient Temperature(℃)
P o
w
e
r
Lo
a
d
(%
)
60-20-60 20
40
80
140-40 0 40 120 16080 100
20
60
100
0
-55℃ 70℃
155℃
180
项目Items
类别Style
Fixed Metal Film Resistors
金属膜电阻 MF Series
●●●●主要性能主要性能主要性能主要性能 Performance Characteristics Performance Characteristics Performance Characteristics Performance Characteristics
参考
:JIS-C-5202
●●●●料号编码料号编码料号编码料号编码 Part Number Part Number Part Number Part Number
MF 镀锡铜线 1/8W 0.125W B ±0.1% R01 0.01Ω T T52
MFC 铜包钢线CP 1/4W,1/4WS 0.25W F ±1% 1009 10Ω T26 T26
1/2W,1/2WS 0.5W 1000 100Ω P P型
1W,1WS 1W 1001 1.0KΩ M M型
2W,2WS 2W 1002 10KΩ F F型
3W,3WS 3W 1003 100KΩ FK2 FK2型
FKK FKK型
MK MK型
MB MB型
www.dzfude.com E-mail:fuanelectronics@163.com
103 T
产品类别 Style 功率 Power 误差 Tolerance 阻值 Value 包装/加工形式 Form
MF 1/8W J
焊锡温度:235±5℃,时间:2±0.5秒
235±5℃ for 2±0.5 seconds
可焊锡性
Solderability
吃锡面积95%以上
At least 95% coverage
温度: 40±2℃,相对湿度:90-95%,1倍额定工作电
压,时间1000小时(1.5小时开0.5小时关)
Rated voltage 1.5hr ON,0.5hr OFF at 40±2
℃,90-95&RH for 1000hrs
温度: 70±2℃,1倍额定工作电压,时间1000小时
(1.5小时开0.5小时关)
Rated voltage 1.5hr ON,0.5hr OFF at 70±2℃
for 1000hrs
耐湿负荷
Humidity Load Life ±1%
负荷寿命
Load Life ±1%
实验温度: 室温+100℃
Test temperature: indoors Temp. 100℃
耐电压
Dielectric withstanding voltage
无烧毁或绝缘性破坏
No breakdown or flashover
温度系数
Temperature Coefficient ±100 PPM/℃
- 12 -
测试方法
Test Methods
2.5倍额定电压/5秒
2.5times RCWV/5seconds
标准值
Standard
无引线脱落
No evidence of mechanical damage
or loosening terminals
2.5公斤拉力,持续时间10秒
2.5Kg for 10 seconds
±0.5%
±0.5% 焊锡温度:350±10℃,时间:3秒Solder Temp. :350±10℃,time:3 seconds
依照电气规格
施加直流电压持续1分钟
AC potential respectively specified in the
list for 60 seconds.
项目
Items
短时间过负荷
Short time overload
耐热性
Resistance to solder heat
焊接强度
Terminal Strength
卓越源自品质