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30
WSR
Vishay Dale
Note
(1)
• Part Marking: DALE, Model, Value, Tolerance, Date Code
* Pb containing terminations are not RoHS compliant, exemptions may apply
** Please see document “Vishay Material Category Policy”:
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
WSR2
WSR3
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage
Insulation Resistance
Operating Temperature Range
Maximum Working Voltage
Weight/1000 pieces (typical)
The WSR3 requires a minimum of 1050 sq. mil. circuit traces connecting to the recommended solder pad
GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBERING: WSR25L000FTA (PREFERRED PART NUMBERING FORMAT)
HISTORICAL PART NUMBER EXAMPLE: WSR2 0.005 Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)
HISTORICAL MODEL
GLOBAL MODEL
WSR2
WSR3
WSR2
W
Low Value (down to 0.001 Ω), Surface Mount
S
* Use “L” for resistance
5L000 = 0.005 Ω
values < 0.01 Ω
R
R0100 = 0.01 Ω
SIZE
4527
4527
R = Decimal
L = mΩ*
VALUE
Power Metal Strip
For technical questions, contact:
2
RESISTANCE VALUE
5
0.005 Ω
L
POWER RATING
TOLERANCE
ppm/°C
www.vishay.com/doc?99902
D = ± 0.5 %
0
F = ± 1.0 %
J = ± 5.0 %
UNIT
V
°C
Ω
V
g
AC
P
3.0
2.0
70 °C
W
0
(1)
0
ww2bresistors@vishay.com
FEATURES
• Molded high temperature encapsulation
• Ideal for all types of current sensing, voltage
• Proprietary
• All welded construction
• Solid metal Nickel-Chrome or Manganese-Copper alloy
• Solderable terminations
• Very low inductance 0.5 nH to 5 nH
• Excellent frequency response to 50 MHz
• Low thermal EMF (< 3 µV/°C)
• Compliant to RoHS directive 2002/95/EC
division
switching and linear power supplies, instruments,
power amplifiers
extremely low resistance values (down to
0.001 Ω)
resistive element with low TCR (< 20 ppm/°C)
F
®
EA = Lead (Pb)-free, tape/reel
TA = Tin/lead, tape/reel (R86)
TOLERANCE CODE
EK = Lead (Pb)-free, bulk
BA = Tin/Lead, bulk (B43)
Resistors,
T
PACKAGING
1 %
and
A
0.01 to 1.0
0.01 to 0.2
processing
± 0.5 %
0.005 Ω to 0.0099 Ω = ± 110
pulse
0.010 Ω to 1.0 Ω = ± 75
RESISTANCE RANGE
WSR2 & WSR3
- 65 to + 275
(P x R)
applications
> 500
> 10
440
technique
9
1/2
Ω
Document Number: 30101
From 1 to 99 as
(Dash Number)
(Up to 2 digits)
applicable
SPECIAL
PACKAGING
produces
0.001 to 1.0
0.001 to 0.2
including
Revision: 01-Jul-09
± 1.0 %
R86