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303145U-0R002-D-B-T PDF预览

303145U-0R002-D-B-T

更新时间: 2024-02-07 16:44:01
品牌 Logo 应用领域
威世 - VISHAY 电阻器
页数 文件大小 规格书
5页 521K
描述
Fixed Resistor, Metal Foil, 3W, 0.002ohm, 0.5% +/-Tol, -25,25ppm/Cel, 3637

303145U-0R002-D-B-T 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active包装说明:SMT, 3637
Reach Compliance Code:compliantECCN代码:EAR99
风险等级:5.77构造:Rectangular
端子数量:2最高工作温度:125 °C
最低工作温度:-55 °C封装高度:0.635 mm
封装长度:9.144 mm封装形状:RECTANGULAR PACKAGE
封装形式:SMT封装宽度:9.398 mm
包装方法:TR额定功率耗散 (P):3 W
电阻:0.002 Ω电阻器类型:FIXED RESISTOR
系列:303145尺寸代码:3637
子类别:FIXED RESISTOR技术:METAL FOIL
温度系数:-25,25 ppm/ °C容差:0.5%
Base Number Matches:1

303145U-0R002-D-B-T 数据手册

 浏览型号303145U-0R002-D-B-T的Datasheet PDF文件第2页浏览型号303145U-0R002-D-B-T的Datasheet PDF文件第3页浏览型号303145U-0R002-D-B-T的Datasheet PDF文件第4页浏览型号303145U-0R002-D-B-T的Datasheet PDF文件第5页 
303144, 303145  
Vishay Foil Resistors  
Models # 303144 and 303145 - Fixed Resistors CSM2512 and CSM3637  
with Screen/Test Flow in Compliance with EEE-INST-002 (Tables 2A  
and 3A, Film/Foil, Level 1) MIL-PRF-55342 and MIL-PRF-49465  
FEATURES  
Temperature coefficient: ± 20 ppm/°C max.  
(- 55 °C to + 125 °C, + 25 °C ref.) (see Table 1)  
Surface mount configuration  
Four terminal (Kelvin) design: allows for precision accurate  
measurements  
Power rating: 1 W to 3 W  
Resistance tolerance: ± 0.5 %  
Resistance range: 2 mΩ to 200 mΩ  
Vishay Foil resistors are not restricted to standard values;  
specific “as required” values can be supplied at no extra  
cost or delivery (e.g. 2.345 mΩ vs. 2 mΩ)  
Short time overload: 0.1 %  
Thermal EMF: 3 µV/°C  
303144 and 303145 are low value current sense resistors,  
providing power and precision in a four terminal, surface  
mount configuration. Its all welded construction is made up  
of a Bulk Metal® resistive element with plated copper  
terminations.  
Maximum current: up to 38 A  
Terminal finish: tin/lead alloy  
For prototype units, append a “U” to the model number  
(example: 303144U). These units have all of the table 2A  
(page 3) 100 % tests performed, with no destructive  
qualification testing required (table 3A, page 3). For more  
information, please contact foil@vishaypg.com  
The four terminal devices separate the current leads from  
the voltage sensing leads. This configuration eliminates the  
effect of the lead wire resistance from points A to B and C  
to D.  
Vishay Foil Resistors' application engineering department is  
available to advise and make recommendations.  
For oriented performances please contact Application  
Engineering  
B
C
FIGURE 1 - POWER DERATING CURVE  
R
+ 70 °C  
I
I
100  
80  
60  
40  
20  
0
A
D
V
~
=
Zin  
- 65 - 50 - 25  
0
25  
50  
75  
100 125 150 170  
Ambient Temperature (°C)  
TABLE 1 - SPECIFICATIONS  
PARAMETER  
303144  
303145  
Resistance Range  
3 mΩ to 200 mΩ  
2 mΩ to 200 mΩ  
3 W ( 2 mΩ to 10 mΩ)  
2 W (> 10 mΩ to 200 mΩ)  
Power Rating at 70 °C  
1 W  
Maximum Current  
Tightest Tolerance  
18 A  
38 A  
± 0.5 %  
± 25 ppm/°C (2 mΩ to 3 mΩ)  
± 25 ppm/°C (100 mΩ to 200 mΩ)  
± 20 ppm/°C (> 3 mΩ to < 100 mΩ)  
Temperature Coefficient Max.  
(- 55 °C to + 125 °C, + 25 °C ref.)  
± 20 ppm/°C (3 mΩ to < 100 mΩ)  
± 25 ppm/°C (100 mΩ to 200 mΩ)  
Operating Temperature Range  
Weight (maximum)  
- 55 °C to + 125 °C, ref. + 25 °C  
0.09 g  
0.29 g  
Document Number: 63166  
Revision: 2-May-11  
For any questions, contact: foil@vishaypg.com  
www.vishayfoilresistors.com  
1

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