Wide Terminal Thick Film Chip Resistors
½电极厚膜晶片电阻器
www.royalohm.com
Feature (特性)
• High power & Wide terminal
高功率，½电极
• Suitable for both wave & re-flow soldering
适合
波峰焊及回流焊
• Application:AV adapters, LCD back-light,camera
strobe etc.
适用于AV适配器，LCD背光电路，照相机
阀门等
Figures (型状)
L
A
A
1. Protective layer (保护层)
W
⑥
⑤
H
B
④
2. Resistive element (阻抗元素)
3. Termination (Inner) Ni / Cr [端面(内)镍/铬层]
4. Termination (Between) Ni [端面(中)镍层]
5. Termination (Outer) Sn [端面(外)锡层(无铅)]
6. High purity Alumina substrate (高纯度氧化铝基板)
①
②
③
Derating Curve & Specification (降功率曲线及性½)
Type
类型
Percent rated load (%)
L（mm）
1.20±0.10
1.60±0.15
2.50±0.15
3.10±0.10
3.10±0.15
W(mm)
2.0±0.10
3.20±0.15
5.00±0.15
4.60±0.15
6.25±0.15
H(mm)
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
0.55±0.10
A(mm)
0.20±0.10
0.30±0.20
0.40±0.20
0.45±0.20
0.45±0.20
B(mm)
0.30±0.20
0.45±0.20
0.60±0.20
0.40±0.20
0.65±0.20
WR08(0508)
WR12(0612)
WR20(1020)
WR18(1218)
Ambient temperature (环境温度)(°C)
负½½比率(%)
WR25(1225)
Type
类型
Size
尺寸
Power
功率
70°C
Resistance Range
阻值范围
1%
5%
Max. Working
Voltage
最大工½电压
/
电流
150V
Max. Overload
Voltage
最大过负荷电压
/
电流
300V
Dielectric
Withstanding
Voltage
绝缘耐压
Operating
Temperature
工½温度范围
T.C.R
温度系数
PPM/°C
10R: ±400
10Ω<R≤100Ω±200
>100Ω:±100
10mΩ≤R<30mΩ:0~+400
30mΩ≤R≤1Ω:0~+150
/
1Ω<R
≤
10Ω:±400
10Ω<R≤100Ω±200
>100Ω:±100
10mΩ≤R < 100mΩ:0~+200
100mΩ≤R≤1Ω:0~+150
/
1Ω<R
≤
10Ω:±400
10Ω<R≤100Ω±200
>100Ω:±100
1/3W
WR08
1220
2/3W
/
1/2W
WR12
1632
1W
/
10Ω~1M
10mΩ~1Ω
<50mΩ
10Ω~1M
1Ω<R≤1M
/
4A
200V
/
8A
400V
10mΩ≤R≤1Ω
<50mΩ
/
5A
/
10A
WR20
2550
1W
10Ω~1M
1Ω~1M
200V
400V
500V
-55℃ ~155℃
10mΩ≤R
＜
30mΩ :0~+200
30mΩ≤R≤1Ω :0~+100
10mΩ~1Ω
/
<50mΩ
/
6A
/
12A
/
10mΩ≤R
＜
30mΩ :0~+200
30mΩ≤R≤1Ω :0~+100
1Ω<R
≤
10Ω:±400
10Ω<R≤100Ω±200
>100Ω:±100
/
1Ω<R
≤
10Ω:±400
10Ω<R≤100Ω±200
>100Ω:±100
10mΩ≤R
＜
30mΩ :0~+150
30mΩ≤R≤1Ω :0~+100
/
WR18
3245
1W
10mΩ~1M
200V
400V
/
2W
WR25
3264
3W
/
<50mΩ
1Ω<R≤1M
6A
200V
10A
400V
10mΩ≤R≤1Ω
<50mΩ
/
6A
/
15A
2018.10.03
Wide Terminal Thick Film Chip Resistors
½电极厚膜晶片电阻器
Performance Specification (性½)
Short-time overload
Dielectric withstanding voltage
Terminal bending
Soldering heat
Solderability
Temperature cycling
Load life in humidity
Load life
短时间过负荷
±5%：±(2.0%±0.1Ω)Max.(
最大
)
±1%： ±(1.0%±0.1Ω)Max.(
最大
)
No evidence of flashover mechanical damage, arcing or insulation break down.
无击穿
,
飞弧及可见机械性损伤
±（1.0%+±0.05Ω）Max.(
最大
)
± (1.0%+0.05Ω) Max.(
最大
)
Min.95% coverage (
最少
95%
覆盖
)
±5%：±(1.0%±0.05Ω)Max.(
最大
)
±1%： ±(0.5%±0.05Ω)Max.(
最大
)
±5%：±(3.0%±0.1Ω)Max.(
最大
)
±1%： ±(1.0%±0.1Ω)Max.(
最大
)
±5%：±(3.0%±0.1Ω)Max.(
最大
)
±1%：±(1.0%±0.1Ω)Max.(
最大
)
绝缘耐压
端子弯曲
耐焊接热
可焊性
温度循环
湿度寿½
负½½寿½
Ordering Procedure (Example:Wide Terminal WR18 1W 5% 120KΩ T/R-4000)
订购方式（例如：½电极WR18
1W 5% 120KΩ T/R-4000）
W R 1 8 1 W J 0 1 2 4
Product Type (
产品类型
):
Fill-in 4 digits with the Chip resistor type
as follow (
填四½数表示产品类型
):
WR08, WR12, WR20, WR18, WR25
Wattage (
功率
):
Fill-in 2 digits with
the codes as follow
(
用下列代码填二
½数
):
W3=1/3W
W2=1/2W
1W=1W
WK=2/3W
2W=2W
3W=3W
Resistance Value (阻值):
5% (E-24 series):
the 1
st
digit is “0”, the 2
nd
& 3
rd
digits
are for the significant figures of the
resistance and the 4
th
indicate the
numbers of zeros following;
5%
产品
(E-24
系列阻值
):
第
1
½数是
0，第 2、3
½数表示阻
值的有效数，第
4
½表示有几个
0;
1%( E-24, E-96 series):
the 1
st
to 3
rd
digits are for the significant
figures of the resistance and the 4
th
indicate the numbers of zeros following.
1%
产品
(E-24, E-96
系列阻值
):
第
1-3
½数表示阻值的有效数，第
4
½数表示有几个
0
T 4
Packing Qty.
(
包装数量
):
4=4,000pcs
5=5,000pcs
C=10,000pcs
D=20,000pcs
E=15,000pcs
E
Special Feature (
特征
):
E = Lead Free (standard) (
无铅标准品
)
Tolerance (
公差
):
F = ±1%
J = ±5%
Packing Type (包装类型):
T = T/R (
编带
/
卷带
)
B = Bulk in Poly bag
(
散装
/
袋装
)
C = Bulk in cassette
(
散装
/
盒装
)
2018.10.03
