WSC, WSN
www.vishay.com
Vishay Dale
Wirewound Resistors, Precision Power, Surface Mount
FEATURES
• All welded construction
• Molded encapsulation
• Wraparound terminations
Available
• Excellent stability at different environmental
conditions
• High power ratings (up to 3 W)
• Superior surge capability
LINKS TO ADDITIONAL RESOURCES
3D 3D
Available
• Available in non-inductive styles with AyrtonPerry winding (WSN in lieu of WSC, maximum
resistance is one-half WSC range)
Available
• AEC-Q200 qualified (1)
Available
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
3D Models
Notes
• 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
• Follow link to Overview of Automotive Grade Products for more details: www.vishay.com/doc?49924
(1) Flame retardance test may not be applicable to some resistor technologies
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
POWER RATING P70 °C RESISTANCE RANGE TOLERANCE WEIGHT (typical)
SIZE
MODEL
W
±%
g/1000 pieces ENCAPSULATION
WSC-1/2
2012
0.5
0.1 to 4.99
0.5, 1, 5
90
Epoxy
WSC-1
2515
1
0.1 to 2.77K
0.5, 1, 5
165
Thermoplastic (1)
WSC2515
WSC2515
2515
1
0.1 to 2.5K
0.5, 1, 5
165
Thermoplastic
WSC0002
WSC-2
4527
2
0.1 to 4.92K
0.5, 1, 5
760
Thermoplastic (1)
WSC4527
WSC4527
4527
2
0.1 to 4.92K
0.5, 1, 5
760
Thermoplastic
WSC6927
WSC6927
6927
3
0.1 to 8K
0.5, 1, 5
1675
Thermoplastic
WSC01/2
WSC0001
(2)
Notes
• Part marking: 1/2 W - DALE, value; 1 W - model, value, tolerance, date code; 2 W and 3 W - DALE, model, value, tolerance, date code
(1) As of 1/1/2010, the WSC0001 and WSC0002 are molded with thermoplastic in lieu of epoxy. Reference PCN-DR-002-2009 and PCN-DR-003-2009
(2) As of February 19, 2016, the WSC0001 was obsoleted by PCN-DR-013-2015; the WSC2515 is a drop-in replacement. You may contact your sales
representative or submit an inquiry via ww2bresistors@vishay.com for supporting information
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
WSC01/2
Temperature
± 50 = 1.0 to 4.99
coefficient measured
ppm/°C
± 90 = 0.1 to 0.99
from -55 °C to +150 °C
WSC2515
WSC0002
± 20 = 10 and above;
± 20 = 26.51 and above;
± 20 = 10.0 and above;
± 50 = 1.0 to 9.9 ;
± 50 = 1.0 to 26.5 ;
± 50 = 1.0 to 9.9 ;
± 90 = 0.31 to 0.99
± 90 = 0.31 to 0.99
± 90 = 0.1 to 0.99
± 150 = 0.1 to 0.3
± 150 = 0.1 to 0.3
Dielectric
withstanding voltage
VAC
> 500
Insulation resistance
> 109
Operating
temperature range
°C
Maximum
working voltage
V
Revision: 07-Sep-2021
WSC4527, WSC6927
-65 to +175
-65 to +175
(P x R)1/2
Document Number: 30102
1
For technical questions, contact: ww2bresistors@vishay.com
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
WSC, WSN
www.vishay.com
Vishay Dale
GLOBAL PART NUMBER INFORMATION
Global Part Numbering Example: WSC2515R7000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W
S
C
2
5
1
5
R
7
0
0
0
F
E
A
GLOBAL MODEL
SIZE
VALUE (1)
TOLERANCE
PACKAGING
SPECIAL
WSC
WSN
01/2
2515
0002
4527
6927
R = decimal
K = thousand
R7000 = 0.70
1K500 = 1.5 k
D = ± 0.5 %
F = ± 1.0 %
G = ± 2.0 %
H = ± 3.0 %
J = ± 5.0 %
K = ± 10 %
EA = lead (Pb)-free, tape / reel
EK = lead (Pb)-free, bulk
TA = tin / lead, tape / reel (R86)
BA = tin / lead, bulk (B43)
(dash number)
(up to 2 digits)
from 1 to 99
as applicable
Notes
(1) WSC / WSN marking (www.vishay.com/doc?30327)
• Packaging code: EB (lead (Pb)-free) and TB (tin / lead) are non-standard packaging codes designating 1000 piece reels. These non-standard
packaging codes are identical to our standard EA (lead (Pb)-free) and TA (tin / lead), except that they have a package quantity of 1000 pieces
DIMENSIONS in inches (millimeters)
W
H
L
b
W1
a
T
L
GLOBAL
MODEL
WSC01/2
WSC2515
WSC0002
WSC4527
WSC6927
L
0.200 ± 0.020
(5.08 ± 0.508)
0.250 ± 0.020
(6.35 ± 0.508)
0.455 ± 0.020
(11.56 ± 0.508)
0.455 ± 0.020
(11.56 ± 0.508)
0.690 ± 0.032
(17.53 ± 0.813)
H
0.096 ± 0.015
(2.44 ± 0.381)
0.110 ± 0.015
(2.79 ± 0.381)
0.167 ± 0.010
(4.24 ± 0.254)
0.167 ± 0.010
(4.24 ± 0.254)
0.280 ± 0.015
(7.11 ± 0.381)
DIMENSIONS
T
0.040 ± 0.010
(1.02 ± 0.254)
0.045 ± 0.010
(1.14 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
W
0.125 ± 0.005
(3.18 ± 0.127)
0.150 ± 0.005
(3.81 ± 0.127)
0.275 ± 0.005
(6.98 ± 0.127)
0.275 ± 0.005
(6.98 ± 0.127)
0.275 ± 0.005
(6.98 ± 0.127)
W1
0.050 ± 0.010
(1.27 ± 0.254)
0.098 ± 0.010
(2.49 ± 0.254)
0.215 ± 0.005
(5.46 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127)
0.215 ± 0.015
(5.46 ± 0.381)
SOLDER PAD DIMENSIONS
a
b
L
0.085 (2.16)
0.070 (1.78)
0.080 (2.03)
0.090 (2.29)
0.115 (2.92)
0.120 (3.05)
0.155 (3.94)
0.230 (5.84)
0.205 (5.21)
0.155 (3.94)
0.230 (5.84)
0.205 (5.21)
0.155 (3.94)
0.235 (5.97)
0.470 (11.94)
Notes
• 3D models available: www.vishay.com/doc?30328
• Surface mount solder profile recommendations: www.vishay.com/doc?31052
• Refer to WSC, WSN conversion guide for detailed construction drawings: www.vishay.com/doc?49616
• For WSC2515 0.5 % tolerance parts, W1 terminal dimension will be 0.090" ± 0.015"
DERATING
200
WSC0002
WSC4527
150
WSC6927
WSC01/2
WSC2515
100
Rated Power in %
Temperature Rise in °C
TEMPERATURE RISE
120
100
80
60
40
50
20
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Power in W
Revision: 07-Sep-2021
0
-65
-25
25
75
70
125
175
225
275
Ambient Temperature in °C
Document Number: 30102
2
For technical questions, contact: ww2bresistors@vishay.com
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
WSC, WSN
www.vishay.com
Vishay Dale
PULSE CAPABILITY
click to get started
VE
TI
A
TR
US
L
IL
S
SE
O
RP
PU
LY
ON
www.vishay.com/resistors/SMD-wirewound-pulse-capability-calculator/
Note
• Pulse capability increases based on the amount of wire for the resistance value and construction. The WSC0002 has greater pulse capability
than WSC4527 due to differences in internal construction. The non-inductive WSN has greater pulse capability for the same size WSC
because the second layer of wire increases the wire mass available to withstand pulse energy without exceeding temperature limits.
Follow pulse graphic link for more information regarding capability
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Thermal shock
-55 °C to +150 °C, 1000 cycles, 15 min at each extreme
± 0.5 % + 0.05
Short time overload
5 x rated power for 5 s
± 0.2 % + 0.05
Low temperature storage
-65 °C for 24 h
± 0.2 % + 0.05
High temperature exposure
1000 h at +175 °C
± 0.5 % + 0.05
Bias humidity
+85 °C, 85 % RH, 10 % bias, 1000 h
± 0.2 % + 0.05
Mechanical shock
100 g’s for 6 ms, 5 pulses
± 0.1 % + 0.05
Vibration
Frequency varied 10 Hz to 500 Hz in 1 min, 3 directions, 9 h
± 0.1 % + 0.05
Load life
1000 h at rated power, +70 °C, 1.5 h “ON”, 0.5 h “OFF”
± 1.0 % + 0.05
Resistance to solder heat
+260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence
± 0.5 % + 0.05
PACKAGING
MODEL
REEL
TAPE WIDTH
DIAMETER
PIECES/REEL
CODE
WSC01/2
12 mm / embossed plastic
330 mm / 13"
2000
EA / TA
WSC2515
16 mm / embossed plastic
330 mm / 13"
2000
EA / TA
WSC0002, WSC4527
24 mm / embossed plastic
330 mm / 13"
1200
EA / TA
WSC6927
32 mm / embossed plastic
330 mm / 13”
725
EA / TA
Notes
• Embossed carrier tape per EIA-481
• Additional packaging details at www.vishay.com/doc?20051
Revision: 07-Sep-2021
Document Number: 30102
3
For technical questions, contact: ww2bresistors@vishay.com
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
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www.vishay.com
Vishay
Disclaimer
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Revision: 09-Jul-2021
1
Document Number: 91000