METAL FILM
矩½片式电阻器
Flat Chip Resistors
(
PRECISION
)
■ 结构图
Construction
L
c
c
EU
RoHS
RN73
矩½金属膜片式电阻器
Metal Film Flat Chip Resistors
W
t
d
Protective coating
Resistive film
Inner electrode
Ni plating
Solder plating
Ceramic substrate
外观颜色：黑色（1E），绿色（1J，2A，2B，2E）
Coating color：Black（1E）, Green（1J, 2A, 2B, 2E）
■ 外½尺寸
Dimensions
型号
Type
(Inch Size Code)
1E（0402）
1J（0603）
2A（0805）
2B（1206）
2E（1210）
L
1.0
+0.1
–0.05
1.6±0.2
2.0±0.2
3.2±0.2
尺寸
Dimensions
（mm）
W
c
d
0.5±0.05
0.2±0.1
0.25
+0.05
–0.1
0.8±0.1
0.3±0.1
0.3±0.1
1.25±0.2
0.4±0.2
0.3
+0.2
–0.1
1.6±0.2
0.5±0.3
0.4
+0.2
–0.1
2.5±0.2
Weight (g)
t
(1000pcs)
0.35±0.05
0.68
0.45±0.1
2.14
0.5±0.1
4.54
9.14
0.6±0.1
14.5
■ 特点
Features
z
是表面封装型的金属膜电阻器。
z
也标准对应高精度的阻值允许偏差±0.05％。
z
也标准对应高精度的电阻温度系数±5×10
-6
/K。
z
电流噪声½。
z
适用于各种工业设备的控制电路。
z
对应回流焊、波峰焊。
z
端子无铅电镀品，符合欧盟RoHS。
z
SMD metal film resistors.
z
High precision type
±0.05%
is also available as standard.
z
High performance T.C.R.
±5×10
-6
/K is also available as
standard.
z
Low current noise.
z
Suitable for control circuits in various industrial equipment.
z
Suitable for both flow and reflow solderings.
z
Products with lead free termination meet EU-RoHS requirements.
■ 品名构成
Type Designation
实例
RN73
Product
Code
Example
2B
Power
Rating
1E:0.063W
1 J:0.063W
0.1W
2A:0.1W
0.125W
2B:0.125W
0.25W
2E:0.25W
T
Terminal
Surface Material
T:Sn
L:Sn/Pb
TD
Taping
TP:2mm pitch
punch paper
TD:4mm pitch
paper
TE:4mm pitch
plastic
embossed
BK:Bulk
1002
Nominal
Resistance
4 digits
B
Resistance
Tolerance
A:±0.05%
B:±0.1%
C:±0.25%
D:±0.5%
F:±1%
25
T.C.R.
×10
-6
/K
05
10
25
50
100
■ 参考标准
Reference Standards
IEC 60115-8
JIS C 5201-8
EIAJ RC-2133A
■ 额定值
Ratings
型 号
Type
1E
额定功率
※1
Power Rating
一般
General
0.063W
额定
额定
电阻温度
环境温度 端子部温度
系数
Rated
Rated
T.C.R.
Terminal
Ambient
高功率
（×10
-6
/K）
High Power Temp.
Part Temp.
±250
–
70℃
75℃
±500
±500
±100
±250
0.1W
70℃
75℃
±500
±100
±500
±100
±250
0.125W
70℃
80℃
±500
±100
±500
±100
±250
0.25W
70℃
85℃
±500
±100
±100
±250
–
70℃
95℃
±500
±100
端子表面材质，以无铅电镀品为准。
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½C。
The terminal surface material lead free is standard.
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.
电阻值范围
Resistance Range
（Ω）
E24・E96・E192
A:±0.05%
–
–
1k½47k
1k½47k
1k½47k
–
–
100½100k
100½100k
51½100k
–
–
100½300k
100½300k
51½300k
–
–
100½510k
51½510k
–
–
B:±0.1% C:±0.25% D:±0.5%
100½100k
100½100k
100½47k0
100½47k0
15½360k
15½360k
–
100½100k
100½100k
15½1M.
15½1M.
–
100½300k
100½300k
15½1M.
15½1M.
–
100½510k
15½1M.
15½1M.
–
100½100k
100½100k
–
100½47k0
15½360k
15½360k
–
–
100½100k
15½1M.
15½1M.
–
–
100½300k
15½1M.
15½1M.
–
100½510k
15½1M.
15½1M.
–
10½120k
10½120k
–
100½47k0
10½360k
10½360k
10½360k
–
100½100k
10½1M.
10½1M.
10½1M.
–
100½300k
10½1M.
10½1M.
10½1M.
100½510k
10½1M.
10½1M.
10½1M.
F:±1%
10½120k
10½120k
–
100½47k0
10½360k
10½360k
10½360k
–
100½100k
10½1M.
10½1M.
10½1M.
–
100½300k
10½1M.
10½1M.
10½1M.
100½510k
10½1M.
10½1M.
10½1M
最高
最高½用电压
过½½电压
Max. Working
Max. Overload
Voltage
Voltage
50V
100V
编带和包装数/卷
Taping & Q'ty/Reel
（pcs）
TP
10,000
TD
–
TE
–
1J
0.063W
75V
150V
–
5,000
–
2A
0.1W
150V
300V
–
5,000
4,000
2B
0.125W
200V
400V
–
5,000
4,000
2E
0.25W
200V
400V
–
5,000
4,000
½用温度范围
Operating Temperature Range：-55℃½+155℃
※1 可靠性性½不同。请确认下一项的性½表。
Reliability performance is different, Please confirm the performance table on the next page.
额定电压是
√
额定功率×公称电阻值所算出的值或表中最高½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.
根据客户的½用状况，如果不清楚是该½用额定环境温度还是额定端子部温度，请以额定端子部温度为优先。
详情请参照14½17页的“端子部温度负荷特性曲线的说明”。
If any questions arise whether to use the
“Rated
Ambient Temperature” the
or
“Rated
Terminal Part Temperature”in your usage conditions, please give priority to the
“Rated
Terminal Part Temperature”
.
For more details, please refer to“Introduction of the derating curves based on the terminal part temperature”in page 14 to 17.
本产品目½中记½½的产品规格如有变更，恕不一一奉告。订购以及½用之前，请仔细确认规格表的内容。
用于½½½设备、医疗设备、航空设备以及其它涉及人身安全、或可½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½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.
Nov. 2017
www.koaglobal.com
■ 负荷减½特性曲线
Derating Curve
100
矩½片式电阻器
Flat Chip Resistors
100
Percent rated power
额定功率比（％）
Percent rated power
80
60
40
20
0
-60 -40 -20
-55
0
20
80 100 120 140 160
70
155
Ambient temperature
40
60
80
60
40
20
0
-60 -40 -20
-55
0
1E,1J 75
℃）
（
2A 80
℃）
（
2B 85
℃）
（
2E 95
℃）
（
20
40
60
80 100 120 140 160
75 85 95
155
端子部温度 Terminal
part temperature
（℃）
超过上述端子部温度½用时，请根据负荷减½特性曲线减小额定功率后½用。
※ 关于½用方法，请参照卷首的“端子部温度负荷减½特性曲线的说明”。
For resistors operated terminal part temperature of described for each size or above,
a power rating shall be derated in accordance with derating curve.
※
Please refer to“Introduction of the derating curves based on the terminal part
temperature”on the beginning of our catalog before use.
试验方法
Test Methods
25℃
＋25℃/＋125℃：T.C.R.＝±5
（×
10
6
/K
）
＋25℃/
55℃ and
＋25℃/＋125℃：another
额定电压 ×2.5 倍或最高过½½电压中½的一方½加
5
秒钟
Rated voltage×2.5 or Max. overload vol., whichever is less, for 5s
260℃±5℃, 10s±1s
（30min.）/＋125℃
（30min.）
-55℃
300 cycles
40℃±2℃, 90%½95%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
＋125℃,
1000h
＋155℃,
1000h
在环境温度70℃以上½用时，应按照上图负荷减½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.
■ 性½
Performance
试验项目
Test Items
电阻值
Resistance
电阻温度系数
T.C.R.
过½½（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℃
高温放½
High temperature exposure
标准值
Performance Requirements
ΔR±（％＋0.05
Ω）
代表值
Typical
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.
一般
General：0.1
高功率
High Power：0.5
0.1
0.25
一般
General：0.5
高功率
High Power：0.5
一般
General：0.25
高功率
High Power：0.5
0.25
0.5
0.01
0.03
0.04
0.03
0.06
0.07
0.02
0.1
0.1
0.25
■ ½用注意事项
Precautions for Use
z
部件的编带材料½用的是采取合适的防静电措½的物质，½在实际情况下，有过度干燥状态的情况，以及编带包装后½加了长时间振动后，项带
上产品吸附了静电，产生装½½不良、部件受到静电（在人½模型100pF，1.5kΩ, 超过1kV
: 1J, 2A, 2B, 2E，超过0.5kV : 1E）破坏，电阻值有发生变
化的危险，要注意。在安装基板时，同样地要注意不½½加过度的静电。
z
在本产品和贴装有本产品的印刷电路板上附着有因助焊剂等而产生的离子性杂质时，将会对耐湿性、耐腐蚀性等产生不良½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½用无铅焊锡时，为了提高浸润性，有时会含有大量离子性物质。因此请½
用RMA类焊锡或助焊剂时，或充分进行清洗。此外，根据保管环境和贴装条件、环境等，附着了汗水、盐等离子性物质时，也会对耐湿性、耐腐
蚀性产生不良½响。为了除去这些离子性物质，也请进行清洗。
z
贴装时，芯片电阻器上贴有耐热屏½胶带，如果撕下胶带，上部电极可½被剥离。已证实，由于暴露在高温下安装附着力变得更加牢固。因此，
请½量避免½用或½用时确保胶带粘合剂不会直接与产品接触。
此外，如进行高压冲淋清洗，水压应力可½导致上部电极剥离。因此，请½量避免½用或事先评估后再½用。
z
The properly and electrostatically measured taping materials are used for the components, but attention should be paid to the fact that there is some danger
the parts absorb on the toptapes to cause a failure in the mounting and the parts are destructed by static electricity (1kV and more : 1J, 2A, 2B, 2E 0.5kV and
more : 1E, Human Body Model 100pF 1.5kΩ) to change theresistance in the conditions of an excessive dryness or after the parts are given vibration for a long
time as they are packaged on the tapes. Similarly, care should be given not to apply theexcessive static electricity when mounting on the boards.
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 maycontain ionic substances like chlorine, acid, etc. while perspiration and saliva include ionic impurities like sodium (Na
+
), chlorine (Cl
–
) etc. Therefore
these kinds of ionic substances mayinduce electrical corrosion when they invade into the products. Either thorough washing or using RMA solder and flux are
necessary since lead free solder contains ionic substances.Washing process is needed, before putting on moisture proof material in order to prevent electrical corrosion.
z
When heat-resistant masking tapes are attached to the chip resistors at the time of mounting and then detached, there is a possibility of exfoliation of the top
electrodes. It is known that the heat applied in the mounting process will enhance the adhesion strength of the tape adhesive so please avoid the use. If the use
of masking tapes are unavoidable, then please be sure not to attach the tape adhesives directly on the products.
When high-pressure shower cleaning is implemented, there is a possibility of exfoliation of the top electrodes caused by the water pressure stress so please
avoid the implementation.
If the implementation is unavoidable, then please evaluate the products beforehand.
本产品目½中记½½的产品规格如有变更，恕不一一奉告。订购以及½用之前，请仔细确认规格表的内容。
用于½½½设备、医疗设备、航空设备以及其它涉及人身安全、或可½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½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.
Nov. 2017
www.koaglobal.com
