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WSR

更新时间: 2024-11-18 07:06:31
品牌 Logo 应用领域
威世 - VISHAY /
页数 文件大小 规格书
3页 238K
描述
Power Metal Strip® Resistors, Low Value (down to 0.001 Ω), Surface Mount

WSR 数据手册

 浏览型号WSR的Datasheet PDF文件第2页浏览型号WSR的Datasheet PDF文件第3页 
WSR  
Vishay Dale  
Power Metal Strip® Resistors,  
Low Value (down to 0.001 Ω), Surface Mount  
FEATURES  
Molded high temperature encapsulation  
Pb-free  
Ideal for all types of current sensing, voltage  
division and pulse applications including  
switching and linear power supplies,  
instruments, power amplifiers  
Proprietary processing technique produces  
extremely low resistance values (down to  
0.001 Ω)  
Available  
e2  
RoHS*  
COMPLIANT  
All welded construction  
Solid metal Nickel-Chrome or Manganese-Copper alloy  
resistive element with low TCR (< 20 ppm/°C)  
Solderable terminations  
Very low inductance 0.5 nH to 5 nH  
Excellent frequency response to 50 MHz  
Low thermal EMF (< 3 µV/°C)  
Lead (Pb)-free version is RoHS compliant  
STANDARD ELECTRICAL SPECIFICATIONS  
POWER RATING  
RESISTANCE RANGE  
GLOBAL  
MODEL  
SIZE  
P70 °C  
W
2.0  
3.0 (1)  
Ω
0.ꢀ ꢁ  
0.01 - 1.0  
0.01 - 0.2  
1.0 ꢁ  
WSR2  
WSR3  
4527  
4527  
0.001 - 1.0  
0.001 - 0.2  
Note  
(1) The WSR3 requires a minimum of 1050 sq. mil. circuit traces connecting to the recommended solder pad  
• Part Marking: DALE, Model, Value, Tolerance, Date Code  
TECHNICAL SPECIFICATIONS  
PARAMETER  
UNIT  
WSR2 & WSR3  
0.005 Ω - 0.0099 Ω = 110  
0.010 Ω - 1.0 Ω = 75  
Temperature Coefficient  
ppm/°C  
Dielectric Withstanding Voltage  
Insulation Resistance  
VAC  
Ω
> 500  
> 109  
Operating Temperature Range  
Maximum Working Voltage  
Weight/1000 pieces (typical)  
°C  
V
g
- 65 to + 275  
(P x R)1/2  
440  
GLOBAL PART NUMBER INFORMATION  
NEW GLOBAL PART NUMBERING: WSR2ꢀL000FTA (PREFERRED PART NUMBERING FORMAT)  
W
S
R
2
L
0
0
0
F
T
A
GLOBAL MODEL  
WSR2  
VALUE  
L = mΩ*  
R = Decimal  
ꢀL000 = 0.005 Ω  
R0100 = 0.01 Ω  
TOLERANCE  
D = 0.5 %  
F = 1.0 %  
J = 5.0 %  
PACKAGING  
EA = Lead (Pb)-free, tape/reel  
EK = Lead (Pb)-free, bulk  
TA = Tin/lead, tape/reel (R86)  
BA = Tin/Lead, bulk (B43)  
SPECIAL  
(Dash Number)  
(up to 2 digits)  
From 1 - 99 as  
applicable  
WSR3  
* use “L” for resistance  
values < 0.01 Ω  
HISTORICAL PART NUMBER EXAMPLE: WSR2 0.00ꢀ Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)  
WSR2  
0.00ꢀ Ω  
1 %  
R86  
HISTORICAL MODEL  
RESISTANCE VALUE  
TOLERANCE CODE  
PACKAGING  
* Pb containing terminations are not RoHS compliant, exemptions may apply  
www.vishay.com  
30  
For technical questions, contact: ww2bresistors@vishay.com  
Document Number: 30101  
Revision: 26-Mar-07  

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