METAL FILM
矩½片式电阻器
Flat Chip Resistors
(
PRECISION
)
■ 结构图
Construction
L
c
c
EU
RoHS
RN73H
矩½金属膜片式电阻器（高可靠性）
Metal Film Flat Chip Resistors（High reliability）
W
t
d
Protective coating
Resistive film
Inner electrode
Ni plating
Solder plating
Ceramic substrate
外观颜色：黑色
Coating color：Black
■ 特点
Features
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贴片金属膜电阻器。
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也标准对应高精度的阻值允许偏差±0.05％。
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也标准对应高精度的电阻温度系数±5×10
-6
/K。
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电流噪声½。
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½用温度范围½155℃。额定环境温度：85℃。
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用特殊防护涂层提高耐湿性。
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适合于各种工业设备中的控制线路。
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对应回流焊，波峰焊。
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符合欧盟RoHS。
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AEC-Q200相关数据已取得。
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SMD metal film resistors.
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High precision type
±0.05%
is available with standard products.
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High performance T.C.R.
±5×10
-6
/K is available.
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Low current noise.
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Operating temperature range
½155℃.
Rated ambient temperature：85℃
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Improved moisture resistance by special protective coating.
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Suitable for control circuits in various industrial equipment.
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Suitable for both flow and reflow solderings.
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Products meet EU-RoHS requirements.
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AEC-Q200 qualified.
■ 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 0.25±0.10
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)
0.68
0.35±0.05
0.45±0.1
2.14
0.5±0.1
4.54
9.14
0.6±0.1
14.5
■ 品名构成
Type Designation
实例
RN73H
Product
Code
Example
2B
Power
Rating
1E:0.063W
1J:0.1W
2A:0.125W
2B:0.25W
2E:0.25W
T
Terminal
Surface Material
T:Sn
G:Au
1
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
■用途 Applications
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½½电子装½ Car
electronics
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工业设备 Industrial
equipment
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医疗设备 Medical
equipment
■ 参考标准
Reference Standards
IE
C 60115-8
JIS C 5201-8
EIAJ RC-2133A
■ 额定值
Ratings
型 号
Type
额定功率
Power
Rating
※1 镀金电极品以1E、1J对应。由于规格不同，请与本公司咨询。
※1
Products with gold plated electrodes are also available with 1E and 1J type, so please consult with us.
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。
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.
额定环境温度
电阻温度
电阻值范围
额定端子部温度
最高½用电压 最高过½½电压
编带和包装数/卷
系数
Rated
Resistance Range（Ω）
Rated Terminal
Max. Working Max. Overload Taping & Q'ty/Reel（pcs）
T.C.R.
Ambient
E24 • E96 • E192
Part Temp.
Voltage
Voltage
TP
TD
TE
（×10
-6
/K） A:±0.05% B:±0.1% C:±0.25% D:±0.5% F:±1%
Temp.
–
±100
47½10k
47½10k
47½10k
47½10k
–
–
–
±250
1E
0.063W
85℃
90℃
47½300k 47½300k 47½300k 47½300k
50V
100V
10,000
–
±500
47½300k 47½300k 10½300k 10½300k
–
–
–
±500
100½59k 100½59k
±100
47½59k
47½360k 47½360k 47½360k 47½360k
–
–
±250
47½59k
15½1M
15½1M
10½1M
10½1M
75V
150V
5,000
1J
0.1W
85℃
95℃
–
±500
15½1M
15½1M
10½1M
10½1M
–
–
±100
–
10½1M
10½1M
–
–
–
±500
100½100k 100½100k
±100
47½100k 47½1M
47½1M
47½1M
47½1M
–
±250
47½100k 15½1.5M 15½1.5M 10½1.5M 10½1.5M
150V
300V
5,000 4,000
2A
0.125W
85℃
100℃
–
±500
15½1.5M 15½1.5M 10½1.5M 10½1.5M
–
–
–
±100
10½1.5M 10½1.5M
–
–
–
±500
100½300k 100½300k
±100
47½300k 47½1M
47½1M
47½1M
47½1M
–
±250
10½1M
10½1M
47½300k 15½1M
15½1M
200V
400V
5,000 4,000
2B
0.25W
85℃
110℃
–
±500
15½1M
15½1M
10½1M
10½1M
–
–
–
±100
10½1M
10½1M
±100
100½510k 100½510k 100½510k 100½510k 100½510k
±250
51½510k 15½1M
15½1M
10½1M
10½1M
–
2E
0.25W
85℃
110℃
200V
400V
5,000 4,000
–
±500
15½1M
15½1M
10½1M
10½1M
–
–
–
±100
10½1M
10½1M
½用温度范围
Operating Temperature Range：-55℃½+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
Percent rated power
Percent rated power
额定功率比（％）
100
80
60
40
20
0
-60 -40 -20 0 20 40 60 80 100 120 140 160
155
-55
90 95 110
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℃/+155℃ : 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
1E, 1J, 2A : -55℃ (30min.) /+155℃ (30min.) 1000 cycles
2B, 2E : -55℃ (30min.) /+155℃ (30min.) 500 cycles
85℃±2℃, 85%±5%RH, 1000h
1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle
85℃±2℃, 3000h
1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle
+155℃, 1000h
矩½片式电阻器
Flat Chip Resistors
80
60
40
20
0
-60 -40 -20
-55
0
20 40 60 80 100 120 140 160
85
155
Ambient temperature
C
1E（90℃）
1J（95℃）
2A（100℃）
2B, 2E（110℃）
在环境温度85℃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 85ºC 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85℃时的耐久性
Endurance at 85℃
高温放½
High temperature exposure
标准值
Performance Requirements
ΔR±（％＋0.05
Ω）
保证值
Limit
代表值
在规定的允许偏差内
–
Within specified tolerance
在规定值以内
–
Within specified T.C.R.
0.05
0.05
0.1
0.1
※2
Typical
0.01
0.01
0.02
0.05
0.03
0.05
※2
※2
0.1
0.1
※2
※
2
保证值因阻值的不同而改变
※
2 Depends on resistance value
■ ½用注意事项
Precautions for Use
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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（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。
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在本产品和安装的印刷电路板上，附着了助焊剂和人的汗和唾液等离子性杂质时，耐湿性・耐腐蚀性等方面会变得不理想。产品被助焊剂中含有
的氯和酸，人的汗，唾液中含有的纳，氯等离子污染时，已证实会引起电蚀。特别是½用无助焊剂时，由于湿润性的提高，会含有大量离子性物
质，所以½用RMA系的焊锡或助焊剂时，请进行充分清洗。并且，涂上防湿涂层材料时，在产品和防湿涂层之间残留了上述杂志时，会引起进一
步电蚀，因此，请在涂防湿材料前清洗。
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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。
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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 (1J, 2A, 2B, 2E: 1kV and more, 1E: 0.5kV and
more at 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.
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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.
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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
