EU
RoHS
RK73B
矩形片式电阻器
Flat Chip Resistors
Construction
■ 结构图
L
c
c
W
ʜġ
ʛġ
ʚġ
t
d
外观颜色:黑色
Coating color:Black
z 小型、轻量。
z 由于电阻器的保护膜使用了金属釉厚膜,因此耐热
性、耐候性优异。
z 电极为三层结构,具有稳定性和高信赖性。
z 对应编带、散装箱方式等各种自动贴装机。
z 对应回流焊、波峰焊。
z 端子无铅电镀品,符合欧盟RoHS。电极、电阻膜层、
玻璃中所含的铅玻璃不适用欧盟RoHS指令。
z AEC-Q200相关数据已取得(除1F)。
z Small size and light weight.
z Excellent heat resistance and weather resistance are ensured
by the use of metal glaze thick film.
z High stability and high reliability with the triple-layer
structure of electrode.
z Applicable to various kinds of automatic mounters for
taping, etc.
z Suitable for both flow and reflow solderings.
z Products with lead free termination meet EU-RoHS
requirements. EU-RoHS regulation is not intended for Pbglass contained in electrode, resistor element and glass.
z AEC-Q200 qualified (Exemption 1F).
■ 品名构成 Type Designation
实例
RK73B
Example
2B
T
TD
103
J
二次加工
Taping
公称电阻值
Nominal
Resistance
3 digits
阻值允许偏差
Resistance
Tolerance
G: ±2%
J : ±5%
型号 Type
(Inch Size Code)
1F
(01005)
1H
(0201)
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
2E
(1210)
W2H
※1
(2010)
W3A
※1
(2512)
W3A2
※1
(2512)
尺寸
W
L
TX:4mm width1mm pitch plastic
embossed
TA:1mm pitch
press paper
TBL・TC・TCM:
2mm pitch
press paper
TPL・TP:
2mm pitch
punch paper
TD:4mm pitch
punch paper
TE:4mm pitch
plastic
embossed
BK:Bulk
※2 镀金电极,对应1E、1J、2A(10Ω~1MΩ)
由于规格不同,请向本公司咨询。
※3 1F、1H、W2H、W3A、W3A2尺寸只对应端子表面材质T。
※2 Products with gold plated electrodes are also available with 1E, 1J
and 2A types (10Ω~1MΩ), so please consult with us.
※3 With type 1F, 1H, W2H, W3A, W3A2 only T is available as the
terminal surface material.
端子表面材质,以无铅品为准。
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。
编带细节参照卷末附录C。
The terminal surface material lead free is standard.
For further information on taping, please refer to APPENDIX C on the
back pages.
20
Weight (g)
(1000pcs)
t
0.2±0.02
0.10±0.03
0.11±0.03
0.13±0.02
0.04
0.6±0.03
0.3±0.03
0.1±0.05
0.15±0.05
0.23±0.03
0.14
1.0 +0.1
–0.05
0.5±0.05
0.2±0.1
0.25 +0.05
–0.1
0.35±0.05
0.68
1.6±0.2
0.8±0.1
0.3±0.1
0.3±0.1
0.45±0.1
2.14
2.0±0.2
1.25±0.1
0.4±0.2
0.3 +0.2
–0.1
0.5±0.1
4.54
1.6±0.2
9.14
3.2±0.2
0.4 +0.2
–0.1
2.6±0.2
5.0±0.2
2.5±0.2
6.3±0.2
3.1±0.2
15.5
0.5±0.3
24.3
0.6±0.1
0.65±0.15
37.1
※1 也对应RK73B 2H,RK73B 3A·3A2 (“d”尺寸不同。“d”尺寸=0.4 +0.2
–0.1 mm)
※1 RK73B 2H and RK73B 3A·3A2 are also still available (different“d”dimensions=0.4 +0.2
–0.1 mm)
■ 负荷减轻特性曲线
Derating Curve
环境温度
端子部温度
Terminal part temperature
Ambient temperature
端子部温度
Terminal part temperature
RK73B W3A2
100
1F
80
1H,1E,1J,2A,2B
2E,W2H,W3A(1W)
60
40
20
0
-60 -40
-55
-20
0
20
40
60
80
100 120 140 160
70
125
ࡦॼཫڡāAmbient temperatureDŽņDž
155
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.
■ 参考标准
ޙځۇଋӋDŽǁDž
Percent rated power
额定功率
端子表面材质
Power
Terminal
Rating
Surface Material
1F : 0.03W
T : Sn
1H : 0.05W
G : Au※2
1E : 0.1W
( L : Sn/Pb※3)
1J : 0.1W
0.125W
2A : 0.25W
2B : 0.25W
2E : 0.5W
W2H : 0.75W
W3A : 1W
W3A2 : 2W
Dimensions (mm)
c
d
0.4±0.02
100
品种
Product
Code
Ni plating
Solder plating
Ceramic substrate
Dimensions
■ 外形尺寸
Features
ʙġ
ʚ ޟ
ʛ उਾޟݢ
ʜ ࿂ۦন֊
100
1E,1J,2A,2B,2E,
W2H,W3A(1W)
80
ޙځۇଋӋDŽǁDž
Percent rated power
■ 特点
ʘġ
ʗ
ʗ ֦॓ಡ
Protective coating
ʘ ݢᏟಡġġġġġġ Resistive film
ʙ ݢؠস Inner electrode
ޙځۇଋӋDŽǁDž
Percent rated power
矩形片式电阻器
Flat Chip Resistors
THICK FILM (GENERAL PURPOSE)
60
40
20
0
-60 -40
-55
-20
0
20
40
60
80
100 120 140 160
70
125
ڤዊԠཫڡāTerminal part temperatureDŽņDž
155
80
60
40
20
0
-60 -40
-55
-20
0
20
40
60
80
100 120 140 160
95
ڤዊԠཫڡāTerminal part temperatureDŽņDž
155
超过上述端子部温度使用时,请根据负荷减轻特性曲线减小额
定功率后使用。
※ 有关使用方法,请参照卷首的“端子部温度负荷减轻特性曲
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 dera-ting curve.
※Please refer to“Introduction of the derating curves based on the
terminal part temperature”on the beginning of our catalog before
use.
Reference Standards
IEC 60115-8
JIS C 5201-8
EIAJ RC-2134C
本产品目录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.
Oct. 2016
www.koaglobal.com
1F
0.03W
70℃
—
1H
0.05W
70℃
—
1E
NEW
电阻值范围
Resistance Range
(Ω)
G: ±2%
J:±5%
E24
E24
±200 100k~1M 100k~1M
±250
10~91k
10~91k
0~+300
1~9.1
1~9.1
±200
10~10M
10~10M
±400
—
1~9.1
电阻温度
额定
额定
额定功率
系数
环境温度 端子部温度
Power
Rated Ambient Rated Terminal T.C.R.
Rating
Temp.
Part Temp. (×10-6/K)
0.1W
70℃
125℃
±200
1~10M
最高
使用电压
Max.
Working
Voltage
最高
过载电压
Max.
Overload
Voltage
20V
30V
25V
50V
1~10M
二次加工和包装数量/卷
Packaging & Q'ty/Reel(pcs)
TX
TBL
40,000 20,000
—
—
—
—
TA
TC・TCM TPL・TP
—
—
35,000
TC :10,000
TCM:15,000
—
—
TD
TE
—
—
—
—
—
—
TPL:20,000
TP :10,000
—
—
75V
100V
±200
1~10M
1~10M
0.1W
70℃
125℃
—
—
—
—
±400
—
—
1J
11M~22M
TP :10,000 5,000
±200
0.125W
70℃
125℃
1~1k
1~1k
±200
1~1M
1~1M
—
—
—
—
TP :10,000 5,000 4,000
2A
0.25W
70℃
125℃
150V
200V
±400 1.1M~10M 1.1M~10M
±200
1~5.6M
1~5.6M
—
—
—
—
—
2B
0.25W
70℃
125℃
5,000 4,000
±400 6.2M~10M 6.2M~22M
±200
10~5.6M
1~5.6M
—
—
—
—
—
2E
0.5W
70℃
125℃
200V
400V
5,000 4,000
±400
—
6.2M~10M
±200
10~5.6M
1~5.6M
—
—
—
—
—
—
W2H
0.75W
70℃
125℃
4,000
±400
—
6.2M~22M
±200
10~5.6M
1~5.6M
400V
200V
—
—
—
—
—
—
4,000
70℃
125℃
W3A
1.0W
±400
—
6.2M~22M (500V※4) (500V※4)
±200
10~5.6M
1~5.6M
—
—
—
—
—
—
—
200V
400V
4,000
W3A2
2.0W
95℃
±400
—
6.2M~22M
使用温度范围 Operating Temperature Range:-55℃~+125℃(1F),-55℃~+155℃(1H•1E•1J•2A•2B•2E•W2H•W3A•W3A2)
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.
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
跳线片式电阻器请参照RK73Z系列。
For flat chip jumper resistor, please refer to RK73Z series.
※4 关于( )内的最高使用电压和最高过载电压,请您咨询。
※4 Please consult with us about the Max. working voltage and the Max. overload voltage with ( ).
根据客户的使用状况,如果不清楚是该使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14~17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”or the“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.
在高功率下使用时,根据基板散热条件的不同,部件温度可能会升高。
请务必在确认端子部温度及产品规格书、使用注意事项后使用。
While using under high power, the temperature of the product may increase depending on the condition of heat dissipation from PCB.
Be sure to check the terminal part temperature as well as precausions to use on delivery specifications before use.
■ 性能
Performance
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℃
高温放置
High temperature exposure
■ 使用注意事项
标准值 Performance Requirements
ΔR±(%+0.1 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.
1:1F
2
0.5:another
1:1F~W3A2(10Ω≤R≤1MΩ)
0.5:1F~W3A2(10Ω≤R≤1MΩ)
3:1F~W3A2(R1MΩ) 1:1F~W3A2(R1MΩ)
1:1F
0.5:1F
0.5:another
0.3:another
0.75:1J, 2A, 2B
2:1J, 2A, 2B
1.5:1F
3:another
1:another
2:1J, 2A, 2B
0.75:1J, 2A, 2B
3:another
1:another
0.5:1F
1
0.3:another
试验方法
Test Methods
25℃
+25℃/-55℃ and +25℃/+125℃
额定电压×2.5倍施加5秒钟(1E, 2B, W3A2:额定电压×2倍)
Rated voltage ×2.5 for 5s(1E, 2B, W3A2:Rated voltage×2 for 5s)
260℃±5℃, 10s±1s
-55℃ (30min.) /+125℃ (30min.) 100 cycles
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
+125℃, 1000h:1F
+155℃, 1000h:1H,1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2
Precautions for Use
z 片状电阻器的基材是氧化铝。由于和安装基板的热膨胀系数不同,在反复施加热循环等热应力时,接合部的焊锡(焊接部)有时会发生龟裂。特
别是大型尺寸W2H/W3A/W3A2,由于热膨胀大,而且本身发热也大,使环境温度变动有较大反复和,载荷的ON/OFF有反复时,需要注意裂纹的
发生。用环氧树脂印刷电路板(FR-4),在使用温度范围的上、下限进行一般性的热循环试验时,1F~2E的类型不容易发生裂纹,而W2H/W3A/
W3A2型则有容易发生裂纹的倾向。因热应力而发生的龟裂,取决于所安装的焊盘的大小、焊锡量、安装基板的散热性等,因此在环境温度有很
大的变化或载荷ON/OFF的条件下使用时,请充分注意以进行设计。
z RK73B1F电阻器会因设备组装工序中静电的产生和施加而发生损坏,敬请注意。
z The substrate of chip resistors is alumina. Cracks may occur at the connection of solder (solder fillet portion) due to the difference of the coefficient of thermal
expansion from a mounting board when heat stress like heat cycle, etc. are repeatedly given to them. Care should be taken to the occurrence of the cracks when
the change in ambient temperature or ON/OFF of load is repeated, especially when large types of W2H/W3A/W3A2 which have large thermal expansion and
also self heating. By general temperature cycle test using glass-epoxy (FR-4) boards under the maximum/minimum temperatures of operating temperature
range, the crack does not occur easily in the types of 1F~2E, but the crack tends to occur in the types of W2H/W3A/W3A2. The occurrence of the crack by
heat stress may be influenced by the size of a pad, solder volume, heat radiation of mounting board etc., so please pay careful attention to designing when a
big change in ambient temperature and conditions for use like ON/OFF of load can be assumed.
z Care should be taken that RK73B1F may be damaged when static electricity occurs and is applied in the equipment assembly process.
本产品目录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.
Oct. 2016
www.koaglobal.com
21
矩形片式电阻器
型 号
Type
Flat Chip Resistors
Ratings
■ 额定值