WSR5 Datasheet, PDF (1/3 Pages) Vishay Siliconix – Power Metal Strip® Resistors, High Power (5 W), Low Value (down to 0.001 Ω), Surface Mount

WSR High Power
Vishay Dale
Power Metal Strip^® Resistors, High Power (5 W),
Low Value (down to 0.001 Ω), Surface Mount
FEATURES
• Molded high temperature encapsulation
• Improved thermal management incorporated
into design
Pb-free
Available
• Ideal for all types of current sensing, voltage
division and pulse applications including
e2
switching and linear power supplies,
instrumentation, power amplifiers
RoHS*
• Proprietary processing technique produces ^COMPLIANT
extremely low resistance values (down to 0.001 Ω)
• 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
• Integral heat sink not utilized for resistance values less
than 0.0075 Ω
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SIZE
POWER RATING
P_{70 °C} W
WSR5
4527
5.0 ⁽¹⁾
Note
(1) _{The WSR5 is rated at 5 W with terminal temperature maintained ≤ 120 °C}
• Part Marking: DALE, Model, Value, Tolerance, Date Code
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
Temperature Coefficient
ppm/°C
Dielectric Withstanding Voltage
V_AC
Insulation Resistance
Ω
Operating Temperature Range
°C
Maximum Working Voltage
V
Weight/1000 pieces
g
RESISTANCE RANGE Ω
± 0.5 %
±1%
0.01 - 0.3
0.001 - 0.3
WSR5
0.0075 Ω to 0.0099 Ω = ± 110
0.01 Ω to 0.3 Ω = ± 75
> 500
> 10⁹
- 65 to + 275
(P x R)^1/2
476
GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBERING: WSR5R0100FTA (PREFERRED PART NUMBERING FORMAT)
WS R5 R 0 1 0 0 F T A
GLOBAL MODEL
WSR5
VALUE
L = mΩ*
R = Decimal
5L000 = 0.005 Ω
R0100 = 0.01 Ω
* use “L” for resistance
values < 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)
HISTORICAL PART NUMBER EXAMPLE: WSR5 0.01 Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)
WSR5
0.01 Ω
1%
SPECIAL
(Dash Number)
(up to 2 digits)
From 1 - 99 as
applicable
R86
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
* Pb containing terminations are not RoHS compliant, exemptions may apply
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PACKAGING
Document Number: 31059
Revision: 12-Jul-07