WSK25121L000FEA Datasheet, PDF (1/3 Pages) Vishay Siliconix – Power Metal Strip Resistors, Low Value (down to 0.0005 Ohm), Surface Mount, 4-Terminal

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WSK
Vishay Dale
Power Metal Strip^® Resistors,
Low Value (down to 0.0005 ), Surface Mount, 4-Terminal
FEATURES
• 4-Terminal design allows for 1 % tolerance
down to 0.0005  and 0.5 % tolerance down to
Available
0.001 
• Ideal for all types of precision current sensing,
voltage division and pulse applications
including switching and linear power supplies, Available
instruments, power amplifiers
• Proprietary processing technique produces
extremely low resistance values (down to
0.0005 )
• All welded construction
Available
• Solderable terminations
• Solid metal nickel-chrome or manganese-copper
alloy resistive element with low TCR (< 20 ppm/°C) ^Available
• Very low inductance 0.5 nH to 5 nH
• Excellent frequency response to 50 MHz
• AEC-Q200 qualified available ⁽¹⁾
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
Note
(1) _{Flame retardance test may not be applicable to some resistor}
technologies.
Note
* This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example, parts
with lead (Pb) terminations are not RoHS-compliant. Please see the information/tables in this datasheet for details.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
SIZE
POWER RATING
P_{70 °C}
W
RESISTANCE VALUE RANGE

Tol. ± 0.1 %
Tol. ± 0.5 %
Tol. ± 1.0 %
WEIGHT
(typical)
g/1000 pieces
WSK2512
2512
1.0
0.01 to 0.2
0.001 to 0.2
0.0005 to 0.2
63.6
Note
• Part marking: Value, tolerance; due to resistor size limitations some resistance values will be marked with only the resistance value.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
Temperature coefficient
ppm/°C
Operating temperature range
°C
Maximum working voltage
V
RESISTOR CHARACTERISTICS
± 350 for 0.5 m to 0.99 m,
± 250 for 0.001  to 0.0029 ,
± 75 for 0.003  to 0.0049 ,
± 35 for 0.005  to 0.2 
- 65 to + 170
(P x R)^1/2
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSK25125L000FTA (preferred part numbering format)
WS K 2 5 1 2 5 L 0 0 0 F T A
GLOBAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING CODE
WSK2512
L = m*
R = Decimal
5L000 = 0.005 
R0100 = 0.01 
B = ± 0.1 %
D = ± 0.5 %
F = ± 1.0 %
EA = Lead (Pb)-free, tape/reel
EK = Lead (Pb)-free, bulk
TA = Tin/lead, tape/reel (R86)
BA = Tin/lead, bulk (B43)
* Use “L” for resistance
values < 0.01 
Historical Part Numbering example: WSK2512 0.005  1 % R86 (will continue to be accepted)
WSK2512
0.005 
1%
SPECIAL
(Dash number)
(up to 2 digits)
From 1 to 99 as
applicable
R86
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING CODE
Revision: 03-May-13
1
Document Number: 30108
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000