Current Sense Resistors - SMD .03ohms 3watts 1%

WSR-3 .03 1%TR

Manufacturer Part NumberWSR-3 .03 1%TR
DescriptionCurrent Sense Resistors - SMD .03ohms 3watts 1%
ManufacturerVishay
SeriesWSR
WSR-3 .03 1%TR datasheet
 


Specifications of WSR-3 .03 1%TR

Resistance0.03 OhmsPower Rating2 Watts
Tolerance1 %Temperature Coefficient+/- 75 PPM / C
Package / Case4527ProductMetal Element Current Sensing Resistors
Operating Temperature Range- 65 C to + 275 CDimensions6.98 mm W x 11.56 mm L x 2.41 mm H
Termination StyleSMD/SMTLead Free Status / Rohs StatusLead free / RoHS Compliant
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WSR
Vishay Dale
Power Metal Strip
Low Value (down to 0.001 ), Surface Mount
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
SIZE
MODEL
WSR2
4527
WSR3
4527
Notes
• Part marking: DALE, model, value, tolerance, date code.
(2)
The WSR3 requires a minimum of 1050 sq. mil. circuit traces connecting to the recommended solder pad.
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature coefficient
Dielectric withstanding voltage
Insulation resistance
Operating temperature range
Maximum working voltage
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSR25L000FTA
W
S
R
GLOBAL MODEL
VALUE
WSR2
L = m*
WSR3
R = Decimal
5L000 = 0.005 
R0100 = 0.01 
* Use “L” for resistance
values < 0.01 
Historical Part Numbering example: WSR2 0.005  1 % R86
WSR2
HISTORICAL MODEL
* Pb containing terminations are not RoHS compliant, exemptions may apply
** Please see document “Vishay Material Category Policy”:
www.vishay.com
For technical questions, contact:
436
®
Resistors,
FEATURES
• Molded high temperature encapsulation
• Ideal for all types of current sensing, voltage
division
switching
instruments, power amplifiers
• Proprietary processing technique produces
extremely low resistance values (down to
0.001 )
• 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)
• AEC-Q200 qualified
• Compliant to RoHS Directive 2002/95/EC
Note
(1)
Flame retardance test may not be applicable to some resistor
technologies.
RESISTANCE VALUE RANGE
POWER RATING
P
70 °C
W
Tol. ± 0.5 %
2.0
0.005 to 1.0
(2)
3.0
0.005 to 0.2
UNIT
ppm/°C
V
AC
°C
V
2
5
L
0
0
0
TOLERANCE CODE
D = ± 0.5 %
EA = Lead (Pb)-free, tape/reel
F = ± 1.0 %
EK = Lead (Pb)-free, bulk
J = ± 5.0 %
TA = Tin/lead, tape/reel (R86)
BA = Tin/lead, bulk (B43)
0.005 
RESISTANCE VALUE
www.vishay.com/doc?99902
ww2bresistors@vishay.com
and
pulse
applications
including
and
linear
power
supplies,
(1)
WEIGHT
(typical)
g/1000 pieces
Tol. ± 1.0 %
0.001 to 1.0
440
0.001 to 0.2
440
WSR2 AND WSR3
± 110 for 0.005  to 0.0099 
± 75 for 0.010  to 1.0 
> 500
9
> 10
- 65 to + 275
1/2
(P x R)
F
T
A
PACKAGING CODE
SPECIAL
(Dash number)
(Up to 2 digits)
From 1 to 99 as
applicable
1 %
R86
TOLERANCE CODE
PACKAGING CODE
Document Number: 30101
Revision: 26-Jan-11

WSR-3 .03 1%TR Summary of contents

  • Page 1

    ... WSR2 4527 WSR3 4527 Notes • Part marking: DALE, model, value, tolerance, date code. (2) The WSR3 requires a minimum of 1050 sq. mil. circuit traces connecting to the recommended solder pad. TECHNICAL SPECIFICATIONS PARAMETER Temperature coefficient Dielectric withstanding voltage Insulation resistance Operating temperature range Maximum working voltage ...

  • Page 2

    ... DERATING PERFORMANCE TEST Thermal shock - 55 ° 150 °C, 1000 cycles, 15 min at each extreme WSR2 rated power for 5 s Short time overload WSR3 rated power for 5 s Low temperature storage - 65 °C for 24 h High temperature 1000 275 °C exposure Bias humidity + 85 ° RH bias, 1000 h Mechanical shock 100 g’ ...

  • Page 3

    ... Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications their own risk and agree to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay or its distributor was negligent regarding the design or manufacture of the part ...