WSC, WSN
www.vishay.com Vishay Dale
Revision: 07-Jan-2019 1Document Number: 30102
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
Wirewound Resistors, Precision Power, Surface Mount
DESIGN SUPPORT TOOLS
FEATURES
• All welded construction
• Molded encapsulation
• Wraparound terminations
• Excellent stability at different environmental
conditions
• High power ratings (up to 3 W)
• Superior surge capability
• Available in non-inductive styles with Ayrton-
Perry winding (WSN in lieu of WSC, maximum
resistance is one-half WSC range)
• AEC-Q200 qualified (1)
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
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
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
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
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Available
Models
Available
Available
Available
Available
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
SIZE
POWER RATING P70 °C
W
RESISTANCE RANGE
TOLERANCE
± %
WEIGHT (typical)
g/1000 pieces
ENCAPSULATION
WSC01/2 WSC-1/2 2012 0.5 0.1 to 4.99
0.5, 1, 5
90 Epoxy
WSC0001 (2) 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
TECHNICAL SPECIFICATIONS
PARAMETER UNIT WSC01/2 WSC2515 WSC0002 WSC4527, WSC6927
Temperature
coefficient ppm/°C ± 50 = 1.0 to 4.99
± 90 = 0.1 to 0.99
± 20 = 26.51 and above;
± 50 = 1.0 to 26.5 ;
± 90 = 0.31 to 0.99
± 150 = 0.1 to 0.3
± 20 = 10.0 and above;
± 50 = 1.0 to 9.9 ;
± 90 = 0.1 to 0.99
± 20 = 10 and above;
± 50 = 1.0 to 9.9 ;
± 90 = 0.31 to 0.99
± 150 = 0.1 to 0.3
Dielectric withstanding
voltage VAC > 500
Insulation resistance > 109
Operating temperature
range °C -65 to +175 -65 to +275
Maximum working
voltage V(P x R)1/2
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSC2515R7000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
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
2515R7000FEASCW
WSC, WSN
www.vishay.com Vishay Dale
Revision: 07-Jan-2019 2Document Number: 30102
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
DIMENSIONS in inches (millimeters)
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
TEMPERATURE RISE DERATING
Note
(1) As of 1/1/2010, WSC0002 will be molded with thermoplastic and have the higher 275 °C temperature derating
PULSE CAPABILITY
www.vishay.com/resistors/SMD-wirewound-pulse-capability-calculator/
GLOBAL
MODEL
DIMENSIONS SOLDER PAD DIMENSIONS
L H T W W1ab L
WSC01/2 0.200 ± 0.020
(5.08 ± 0.508)
0.096 ± 0.015
(2.44 ± 0.381)
0.040 ± 0.010
(1.02 ± 0.254)
0.125 ± 0.005
(3.18 ± 0.127)
0.050 ± 0.010
(1.27 ± 0.254) 0.085 (2.16) 0.070 (1.78) 0.080 (2.03)
WSC2515 0.250 ± 0.020
(6.35 ± 0.508)
0.110 ± 0.015
(2.79 ± 0.381)
0.045 ± 0.010
(1.14 ± 0.254)
0.150 ± 0.005
(3.81 ± 0.127)
0.098 ± 0.005
(2.49 ± 0.127) 0.090 (2.29) 0.115 (2.92) 0.120 (3.05)
WSC0002 0.455 ± 0.020
(11.56 ± 0.508)
0.167 ± 0.010
(4.24 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.275 ± 0.005
(6.98 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127) 0.155 (3.94) 0.230 (5.84) 0.205 (5.21)
WSC4527 0.455 ± 0.020
(11.56 ± 0.508)
0.167 ± 0.010
(4.24 ± 0.254)
0.100 ± 0.010
(2.54 ± 0.254)
0.275 ± 0.005
(6.98 ± 0.127)
0.215 ± 0.005
(5.46 ± 0.127) 0.155 (3.94) 0.230 (5.84) 0.205 (5.21)
WSC6927 0.690 ± 0.032
(17.53 ± 0.813)
0.280 ± 0.015
(7.11 ± 0.381)
0.100 ± 0.010
(2.54 ± 0.254)
0.275 ± 0.005
(6.98 ± 0.127)
0.215 ± 0.015
(5.46 ± 0.381) 0.155 (3.94) 0.235 (5.97) 0.470 (11.94)
W
L
T
W1
H
L
a
b
0 0.5 1.0 1.5 2.0 2.5 3.0
Power in W
200
150
100
50
0
WSC2515
WSC01/2
WSC6927
WSC0002
WSC4527
Temperature Rise in °C
- 65 - 25 25 75 125 175 225 275
Ambient Temperature in °C
120
100
80
60
40
20
0
70
WSC01/2
Rated Power in %
WSC0002
(1)
WSC2515
WSC4527
WSC6927
I
I
L
L
L
L
U
S
T
R
A
T
A
A
I
V
E
P
U
R
R
P
P
O
S
E
E
S
S
O
O
N
L
Y
Y
L
L
LL
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WSC, WSN
www.vishay.com Vishay Dale
Revision: 07-Jan-2019 3Document Number: 30102
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
Notes
• Embossed carrier tape per EIA-481
• Additional packaging details at www.vishay.com/doc?20051
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 + 275 °C (+175 °C for WSC01/2) ± 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
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
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