WSC, WSN
Vishay Dale
Wirewound Resistors,
Precision Power, Surface Mount
FEATURES
•
•
•
•
•
•
•
•
•
All welded construction
Molded encapsulation
Pb-free
Wrap around terminations
Available
Solderable termination
Excellent stability at different environmental
e3
conditions
High power ratings
RoHS*
Superior surge capability
COMPLIANT
Available in non-inductive styles with Aryton-Perry winding
(WSN in lieu of WSC, maximum resistance is one-half
WSC range)
Lead (Pb)-Free version is RoHS Compliant
STANDARD ELECTRICAL SPECIFICATIONS
TOLERANCE
RESISTANCE RANGE
ENCAPSULATION
POWER RATING P
70°C
±%
Ω
W
WSC01/2
WSC-1/2
2012
0.5
0.5, 1, 5
0.1 - 4.99
Epoxy
WSC0001
WSC-1
2515
1.0
0.5, 1, 5
0.1 - 2.77k
Epoxy
WSC2515
WSC2515
2515
1.0
0.5, 1, 5
0.1 - 2.77k
Thermoplastic
WSC0002
WSC-2
4527
2.0
0.5, 1, 5
0.1 - 4.92k
Epoxy
WSC4527
WSC4527
4527
2.0
0.5, 1, 5
0.1 - 4.92k
Thermoplastic
WSC6927
WSC6927
6927
3.0
0.5, 1, 5
0.1 - 8k
Thermoplastic
• Part Marking: 1/2W - DALE, Value; 1W - Model, Value, Tolerance, Date Code; 2W & 3W - DALE, Model, Value, Tolerance, Date Code.
GLOBAL
MODEL
HISTORICAL
MODEL
SIZE
INCH
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature
Coefficient
Dielectric Withstanding
Voltage
Insulation Resistance
Operating
Temperature Range
Maximum Working
Voltage
Weight/1000 pieces
(typical)
WSC4527/WSC6927
0.1Ω - 0.3Ω = ± 150
0.1Ω - 0.99Ω = ± 90
0.1Ω - 0.99Ω = ± 90
0.1Ω - 0.99Ω = ± 90 0.31Ω - 0.99Ω = ± 90
0.1Ω - 0.99Ω = ± 90
ppm/°C
1.0Ω- 26.5Ω = ± 50
1.0Ω - 26.5Ω = ± 50
1.0Ω - 9.9Ω = ± 50
1.0Ω- 4.99Ω= ± 50 26.51Ω and above = ± 20 26.51Ω and above = ± 20 10.0Ω and above = ± 20
1.0Ω - 9.9Ω= ± 50
10Ω and above = ± 20
V
AC
Ω
°C
V
g
> 500
> 10
9
- 65/+ 175
(P x R)
1/2
90
> 500
> 10
9
- 65/ + 175
(P x R)
1/2
165
> 500
> 10
9
- 65/ + 275
(P x R)
1/2
165
> 500
> 10
9
- 65/ + 175
(P x R)
1/2
760
> 500
> 10
9
- 65/ + 275
(P x R)
1/2
760 / 1675
UNIT
WSC01/2
WSC0001
WSC2515
WSC0002
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSC2515R7000FTA8 (preferred part numbering format)
W
GLOBAL MODEL
WSC
WSN
S
C
SIZE
01/2
0001
2515
0002
4527
6927
2
5
1
5
R
7
0
0
0
F
T
A
8
SPECIAL
(Dash
Number)
(up to 2 digits)
From
1-99
as
applicable
VALUE
R
= decimal
K
= thousand
54R15
= 54.15Ω
1K500
= 1.5KΩ
TOLERANCE
D
=
±
0.5%
F
=
±
1.0%
G
=
±
2.0%
H
=
±
3.0%
J
=
±
5.0%
K
=
±
10%
PACKAGING
EA
= Lead Free, tape/reel
EK
= Lead Free,
bulk
TA
= Tin/Lead, Tape/reel (R86)
BA
= Tin/Lead,
bulk
(B43)
Historical Part Number example: WSC2515-8
0.7Ω
1%
R86 (will continue to be accepted)
WSC2515-8
HISTORICAL MODEL
0.7Ω
RESISTANCE
VALUE
1%
TOLERANCE
CODE
R86
PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
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218
For technical questions contact: ww2aresistors@vishay.com
Document Number: 30102
Revision: 04-Oct-05
WSC, WSN
Wirewound Resistors,
Precision Power, Surface Mount
DIMENSIONS
MODEL
WSC01/2
W
H
Vishay Dale
DIMENSIONS
in inches [millimeters]
L
0.200 ± 0.020
[5.08 ± 0.508]
0.250 ± 0.020
[6.35 ± 0.508]
0.250 ± 0.020
[6.35 ± 0.508]
H
T
W
W
1
0.096 ± 0.015 0.040 ± 0.010 0.125 ± 0.005 0.050 ± 0.010
[2.44 ± 0.381] [1.02 ± 0.254] [3.18 ± 0.127] [1.27 ± 0.254]
0.110 ± 0.015 0.045 ± 0.010 0.150 ± 0.005 0.098 ± 0.005
[2.79 ± 0.381] [1.14 ± 0.254] [3.81 ± 0.127] [2.49 ± 0.127]
0.110 ± 0.015 0.045 ± 0.010 0.150 ± 0.005 0.098 ± 0.005
[2.79 ± 0.381] [1.14 ± 0.254] [3.81 ± 0.127] [2.49 ± 0.127]
WSC0001
WSC2515
WSC0002
T
L
W1
0.445 ± 0.032 0.162 ± 0.015 0.100 ± 0.010 0.275 ± 0.005 0.215 ± 0.005
[11.30 ± 0.813] [4.11 ± 0.381] [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
[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
[17.53 ± 0.813] [7.11 ± 0.381] [2.54 ± 0.254] [6.98 ± 0.127] [5.46 ± 0.381]
SOLDER PAD DIMENSIONS
in inches [millimeters]
a
0.085 [2.16]
0.090 [2.29]
0.090 [2.29]
0.155 [3.94]
0.155 [3.94]
0.155 [3.94]
Rated Power in
%
120
100
80
60
40
WSC2515
WSC4527
WSC6927
WSC4527
l
b
WSC6927
a
MODEL
WSC01/2
WSC0001
WSC2515
WSC0002
WSC4527
WSC6927
Temperature Rise in
°C
200
WSC0002
WSC4527
WSC01/2
100
WSC0001
WSC2515
b
0.070 [1.78]
0.115 [2.92]
0.115 [2.92]
0.230 [5.84]
0.230 [5.84]
0.235 [5.97]
l
0.080 [2.03]
0.120 [3.05]
0.120 [3.05]
0.205 [5.21]
0.205 [5.21]
0.470 [11.94]
150
WSC6927
50
20
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Power in W
0
WSC01/2
WSC0001
WSC0002
125
175
225
275
Ambient Temperature in
°C
-65
-25
25
75
70
Temperature Rise
Derating
PERFORMANCE
TEST
Thermal Shock
Short Time Overload
Low Temperature Storage
High Temperature Exposure
Bias Humidity
Mechanical Shock
Vibration
Load Life
Resistance to Solder Heat
CONDITIONS OF TEST
- 55°C to + 150°C, 1000 cycles, 15 minutes at each extreme
5 x rated power for 5 seconds
- 65°C for 24 hours
1000 hours at + 275°C (+ 175°C for WSC01/2, WSC0001 and WSC0002)
+ 85°C, 85% RH, 10% Bias, 1000 hours
100g’s for 11 milliseconds, 5 pulses
Frequency varied 10 to 500Hz in one minute, 3 directions, 9 hours
1000 hours at rated power, + 70°C, 1.5 hours “ON”, 0.5 hours “OFF”
+ 260°C Solder, 10 -12 second dwell, 25mm/second emergence
TEST LIMITS
± (0.5% + 0.05Ω)
∆R
± (0.2% + 0.05Ω)
∆R
± (0.2% + 0.05Ω)
∆R
± (0.5% + 0.05Ω)
∆R
± (0.2% + 0.05Ω)
∆R
± (0.1% + 0.05Ω)
∆R
± (0.1% + 0.05Ω)
∆R
± (1.0% + 0.05Ω)
∆R
± (0.5% + 0.05Ω)
∆R
PACKAGING
MODEL
REEL
TAPE WIDTH
DIAMETER
330mm/13"
330mm/13"
330mm/13"
330mm/13”
PIECES/REEL
2000
2000
1200
725
CODE
EA/TA
EA/TA
EA/TA
EA/TA
WSC01/2
12mm/Embossed Plastic
WSC0001/WSC2515
16mm/Embossed Plastic
WSC0002/WSC4527
24mm/Embossed Plastic
WSC6927
32mm/Embossed Plastic
Embossed Carrier Tape per EIA-481-1, 2, 3
Document Number: 30102
Revision: 04-Oct-05
For technical questions contact: ww2aresistors@vishay.com
www.vishay.com
219
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
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