EU
RoHS
METAL FILM
MF
涂层绝缘型金属膜固定电阻器
Coat-Insulated Fixed Metal Film Resistors
■ 结构图
Construction
C
③
②
①
④
⑤
⑦
r
①
②
③
④
低功率型电阻器
Low Power Type Resistors
外观颜色:亮灰色 Coating color:Light gray
表示:颜色代码 Marking : Color code
■ 特点
Features
型号
Type
MFS1/4
MF1/4
MFS1/2
MF1/2
D
⑤ 电极帽
⑥ 导线
⑦ 电阻膜
Marking
Insulation coating
Trimming line
Ceramic core
■ 外形尺寸
z 是高精度、低T.C.R的金属膜电阻器。
z 可以用于自动插装机。
z 可以进行各种成形加工。
z 长期稳定性优异。
z 符合欧盟RoHS。
z AEC-Q200相关数据已取得。(MF1/2除外)
z High precision and low T.C.R. metal film resistors.
z Automatic insertion is applicable.
z Various formings are available.
z Excellent stability for a long time.
z Products meet EU-RoHS requirements.
z AEC-Q200 qualified (Exempition MF1/2).
r
L
表示
绝缘涂层
调阻线
陶瓷芯
d
⑥
Electrode cap
Lead wire
Resistive film
Dimensions
尺寸
C Max.
3.4
L
3.2±0.2
Dimensions (mm)
D
d (Nominal)
1.7 +0.2
0.45
–0.1
±3※
28
6.3±0.5
7.1
2.3±0.3
9.0±1.0
11.1
3.5±0.4
0.6
Weight (g)
(1000pcs)
120
215
215
360
※ 引线长度按照成型和编带不同而改变。
※ Lead length changes depending on taping and forming type.
■ 参考标准
Reference Standards
IEC 60115-2
JIS C 5201-2
EIAJ RC-2137
■ 品名构成 Type Designation
实例
Example
MF
1/4
D
C
T52
A
1002
F
品种
Product
Code
额定电力
Power
Rating
S1/4:0.25W
1/4:0.25W
S1/2:0.5W
1/2:0.5W
电阻温度系数
端子表面材质
T.C.R.
(×10 -6/K)
C:±50
D:±100
L:± 200
Termina l
Surface Material
C:SnCu
二次加工
Taping &
Forming
参照下述
See table
below
包装
Packing
公称电阻值
Nominal
Resistance
D, F:4 digits
G:3 digits
阻值允许偏差
Resistance
Tolerance
A:AMMO包装
A:AMMO
R:卷
R:REEL
空栏:箱子
Nil:BOX
D:± 0.5%
F:±1%
G:±2%
欲知关于此产品含有的环境负荷物质详情(除EU-RoHS以外),请与我们联系。
编带细节请参考卷末附录C。
Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS.
For further information on taping, please refer to APPENDIX C on the back pages.
■ 二次加工对应表 Taping & Forming Matrix
型号
Type
MFS1/4□C
MF1/4□C
MFS1/2□C
MF1/2□C
轴向编带
Axial Taping
T26
T52
○
○
○
○
○
○
○
–
VT
○
○
○
–
径向编带
Radial Taping
VTP
VTE
–
–
○
○
○
○
–
–
MT
○
–
–
–
U成形
U Forming
U
○
○
–
–
M5
M5F
–
–
–
M5R
–
–
–
M成形
M Forming
M10
–
M10F
M10R
–
M12.5
–
M12.5R
–
M12.5R
M15
–
–
–
M15R
□:T.C.R.
■ 额定值
型 号
Type
MFS1/4CC
MFS1/4DC
MF1/4CC
MF1/4DC
MF1/4LC
MFS1/2CC
MFS1/2DC
MF1/2CC
MF1/2DC
MF1/2LC
Ratings
额定功率
Power
Rating
0.25W
0.25W
0.5W
0.5W
电阻温度系数
T.C.R.
(×10-6/K)
C:±50
D:±100
C:±50
D:±100
L:±200
C:±50
D:±100
C:±50
D:±100
L:±200
电阻值范围
Resistance Range(Ω)
D: ±0.5%
F:±1%
G: ±2%
E24 • E192
E24 • E96
E24
49.9~562k
10~1M
10~2.21M
–
–
1.0~10
0.51~10
10~1M
10~2.21M
10~2.21M
–
10~4.99M
10~5.11M
1.0~10
最高过载电压
Max. Overload
Voltage
–
10~2.21M
10~5.05M
最高使用电压
Max. Working
Voltage
–
耐电压
Dielectric
Withstanding
Voltage
300V
250V
500V
500V
350V
编带和包装数/AMMO包装
Taping & Q'ty/AMMO (pcs)
T26A
T52A
3,000
3,000
2,000
2,000
2,000
2,000
2,000
3,000
3,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
2,000
700V
700V
0.51~10
–
额定环境温度 Rated Ambient Temperature :+70℃
使用温度范围 Operating Temperature Range:-55℃~+155℃
额定电压是√额定功率×公称电阻值所算出的值或表中最高使用电压两者中小的值为额定电压。
Rated voltage = √Power Rating×Resistance value or Max. working voltage, whichever is lower.
本样本手册中记载的产品规格如有变更,恕不一一奉告。订购以及使用之前,请仔细确认规格表的内容。
用于车载设备、医疗设备、航空设备以及其它涉及人身安全、或可能引起重大损失的设备上时,请务必事先与我公司联系。这些产品在这类用途中出现故障或失灵可能导致人身事故或严重损坏。
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Mar. 2015
www.koaglobal.com
■ 负荷减轻特性曲线
Derating Curve
额定功率比(%)
Percent rated power
100
80
60
40
20
0
-60 -40 -20 0 20 40 60 80 100 120 140 160
-55
70
155
环境温度 Ambient temperature(℃)
Performance
标准值 Performance Requirements
ΔR±(%+0.05 Ω)
保证值 Limit
在规定的允许偏差内
Within specified tolerance
在规定值以内
Within specified T.C.R.
试验项目
Test Items
电阻值
Resistance
电阻温度系数
T.C.R.
过载(短时间)
Overload(Short time)
耐焊接热
Resistance to soldering heat
温度突变
Rapid change of temperature
耐湿负荷
Moisture resistance
在70℃时的耐久性
Endurance at 70℃
■ 使用注意事项
代表值
Typical
试验方法
Test Methods
–
+25℃
–
+25℃/+125℃
0.5
0.3
额定电压×2.5倍或最高过载电压低的一方施加5秒钟。:MFS1/4,
MF1/4, MF1/2
额定电压×2倍或最高过载电压低的一方施加5秒钟。:MFS1/2
Rated voltage ×2.5 or Max. overload vol., whichever is lower, for
5s : MFS1/4, MF1/4, MF1/2
Rated voltage ×2 or Max. overload vol., whichever is lower, for 5s
: MFS1/2
0.75:MFS1/4
0.5:MF1/4, MFS1/2, MF1/2
0.4:MFS1/4
0.25:MF1/4, MFS1/2, MF1/2
260℃±5℃, 10s±1s
1.0
0.3
-55℃(30min.)/+155℃(30min.)5 cycles
1.5:MFS1/4
1:MF1/4, MFS1/2, MF1/2
1.5:MFS1/4
1:MF1/4, MFS1/2, MF1/2
1:MFS1/4
0.75:MF1/4, MFS1/2, MF1/2
1:MFS1/4
0.75:MF1/4, MFS1/2, MF1/2
40℃±2℃, 90%~95%RH, 1000h
1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle
70℃±2℃, 1000h
1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle
Precautions for Use
z 助焊剂等在本产品和安装的印刷电路板上附着离子性杂质时,其耐湿性•耐腐蚀性将受到影响。助焊剂内有时含有氯•酸等离子性物质,为除去这
些离子性物质应进行清洗。特别是使用无铅助焊剂时,由于湿润性提高了,有时会含有大量离子性物质,所以在使用RMA系的焊锡或助焊剂时,
应充分进行清洗。并且,保管环境和安装条件、环境等,附着了汗•盐等离子性物质时,其耐湿性•耐腐蚀性也将受到影响。对于这种污染,为了
除去这些离子性物质,应当进行清洗。
z Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion
resistance, etc. The flux may contain ionic substances like chlorine, acid, etc. Please wash them to get rid of these ionic substances especially when using leadfree solder that may contain much of the said substances for improving a wetting characteristic. Using RMA solder or RMA flux, or well-washing is needed.
Also, attaching ionic substances such as perspiration, salt etc. by storage environments or mounting conditions/environments negatively affects their moisture
resistance, corrosion resistance etc. Please wash them to remove the ionic substances when they are polluted.
本样本手册中记载的产品规格如有变更,恕不一一奉告。订购以及使用之前,请仔细确认规格表的内容。
用于车载设备、医疗设备、航空设备以及其它涉及人身安全、或可能引起重大损失的设备上时,请务必事先与我公司联系。这些产品在这类用途中出现故障或失灵可能导致人身事故或严重损坏。
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Mar. 2015
www.koaglobal.com
低功率型电阻器
■ 性能
Low Power Type Resistors
在环境温度70℃以上使用时,应按照上图负荷减轻特性曲线,减小额定功率。
For resistors operated at an ambient temperature of 70ºC or above, a power rating shall be
derated in accordance with the above derating curve.