WSC, WSN
www.vishay.com
Vishay Dale
Wirewound Resistors, Precision Power, Surface Mount
FEATURES
All welded construction
Molded encapsulation
Wraparound terminations
Excellent stability at different environmental
Available
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
Available
resistance is one-half WSC range)
DESIGN TOOLS (click logo to get started)
(1)
AEC-Q200 qualified
Available
Material categorization: for definitions of
compliance please see
Models
Available
www.vishay.com/doc?99912
Available
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 HISTORICAL POWER RATING P RESISTANCE RANGE TOLERANCE WEIGHT (typical)
70 C
SIZE ENCAPSULATION
MODEL MODEL W % g/1000 pieces
WSC01/2 WSC-1/2 2012 0.5 0.1 to 4.99 0.5, 1, 5 90 Epoxy
(2) (1)
WSC-1 2515 1 0.1 to 2.77K 0.5, 1, 5 165 Thermoplastic
WSC0001
WSC2515 WSC2515 2515 1 0.1 to 2.5K 0.5, 1, 5 165 Thermoplastic
(1)
0.5, 1, 5 760 Thermoplastic
WSC0002 WSC-2 4527 2 0.1 to 4.92K
WSC4527 WSC4527 4527 2 0.1 to 4.92K 0.5, 1, 5 760 Thermoplastic
0.5, 1, 5 1675 Thermoplastic
WSC6927 WSC6927 6927 3 0.1 to 8K
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 WSC2515 WSC0002 WSC4527, WSC6927
20 = 26.51 and above; 20 = 10 and above;
20 = 10.0 and above;
Temperature 50 = 1.0 to 4.99 50 = 1.0 to 26.5 ; 50 = 1.0 to 9.9 ;
ppm/C 50 = 1.0 to 9.9 ;
coefficient 90 = 0.1 to 0.99 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
V > 500
AC
voltage
9
Insulation resistance > 10
Operating temperature
C -65 to +175 -65 to +275
range
Maximum working
1/2
V (P x R)
voltage
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: WSC2515R7000FEA (visit www.vishay.net Vishay Dale parts numbering manual for all options)
W SC 251 5 R 7 00 0 F E A
GLOBAL MODEL SIZE VALUE TOLERANCE PACKAGING SPECIAL
WSC 01/2 R = decimal D = 0.5 % EA = lead (Pb)-free, tape / reel (dash number)
WSN 2515 K = thousand F = 1.0 % EK = lead (Pb)-free, bulk (up to 2 digits)
0002 R7000 = 0.70 G = 2.0 % from 1 to 99
TA = tin / lead, tape / reel (R86)
4527 1K500 = 1.5 k H = 3.0 % as applicable
BA = tin / lead, bulk (B43)
6927 J = 5.0 %
K = 10 %
Note
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.
Revision: 13-Oct-16 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?91000WSC, WSN
www.vishay.com
Vishay Dale
DIMENSIONS in inches (millimeters)
W
H
b
L
W
1
a
T
L
DIMENSIONS SOLDER PAD DIMENSIONS
GLOBAL
MODEL
L H T W W ab L
1
0.200 0.020 0.096 0.015 0.040 0.010 0.125 0.005 0.050 0.010
WSC01/2 0.085 (2.16) 0.070 (1.78) 0.080 (2.03)
(5.08 0.508) (2.44 0.381) (1.02 0.254) (3.18 0.127) (1.27 0.254)
0.250 0.020 0.110 0.015 0.045 0.010 0.150 0.005 0.098 0.005
WSC2515 0.090 (2.29) 0.115 (2.92) 0.120 (3.05)
(6.35 0.508) (2.79 0.381) (1.14 0.254) (3.81 0.127) (2.49 0.127)
0.455 0.020 0.167 0.010 0.100 0.010 0.275 0.005 0.215 0.005
WSC0002 0.155 (3.94) 0.230 (5.84) 0.205 (5.21)
(11.56 0.508) (4.24 0.254) (2.54 0.254) (6.98 0.127) (5.46 0.127)
0.455 0.020 0.167 0.010 0.100 0.010 0.275 0.005 0.215 0.005
WSC4527 0.155 (3.94) 0.230 (5.84) 0.205 (5.21)
(11.56 0.508) (4.24 0.254) (2.54 0.254) (6.98 0.127) (5.46 0.127)
0.690 0.032 0.280 0.015 0.100 0.010 0.275 0.005 0.215 0.015
WSC6927 0.155 (3.94) 0.235 (5.97) 0.470 (11.94)
(17.53 0.813) (7.11 0.381) (2.54 0.254) (6.98 0.127) (5.46 0.381)
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
120
200
100
WSC0002
WSC4527
WSC6927
150
80 (1)
WSC01/2 WSC0002
WSC2515
WSC2515
WSC4527
60
WSC6927
100
40
50
20 WSC01/2
0
0
- 65 - 25 25 75 125 175 225 275
0 0.5 1.0 1.5 2.0 2.5 3.0
Ambient Temperature in C
Power in W
70
Note
(1)
As of 1/1/2010, WSC0002 will be molded with thermoplastic and have the higher 275 C temperature derating.
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 gs 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
Revision: 13-Oct-16 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
Temperature Rise in C
Rated Power in %