Wirewound Resistors,

Precision Power, Surface Mount

www.vishay.com

For technical questions contact: ww2aresistors@vishay.com

Document Number: 30102

218

Revision: 14-Feb-06

WSC, WSN

Vishay Dale

FEATURES

• All welded construction

• Molded encapsulation

• Wrap around terminations

• Solderable termination

• Excellent stability at different environmental

conditions

• High power ratings

• Superior surge capability

• 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

• Part Marking: 1/2 W - DALE, Value; 1 W - Model, Value, Tolerance, Date Code; 2 W & 3 W - DALE, Model, Value, Tolerance, Date Code

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

HISTORICAL

MODEL

SIZE

INCH

W

TOLERANCE

± %

RESISTANCE RANGE

Ω

ENCAPSULATION

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 - 2.77 k

Epoxy

WSC2515

WSC2515

2515

1.0

0.5, 1, 5

0.1 - 2.77 k

Thermoplastic

WSC0002

WSC-2

4527

2.0

0.5, 1, 5

0.1 - 4.92 k

Epoxy

WSC4527

WSC4527

4527

2.0

0.5, 1, 5

0.1 - 4.92 k

Thermoplastic

WSC6927

WSC6927

6927

3.0

0.5, 1, 5

0.1 - 8 k

Thermoplastic

TECHNICAL SPECIFICATIONS

PARAMETER

UNIT

WSC01/2

WSC0001

WSC2515

WSC0002

WSC4527/WSC6927

Temperature

Coefficient

ppm/°C

0.1

Ω - 0.99 Ω = ± 90

1.0

Ω - 4.99 Ω = ± 50

0.1

Ω - 0.99 Ω = ± 90

1.0

Ω- 26.5Ω = ± 50

26.51

Ω and above = ± 20

0.1

Ω - 0.99Ω = ± 90

1.0

Ω - 26.5 Ω = ± 50

26.51

Ω and above = ± 20

0.1

Ω - 0.99 Ω = ± 90

1.0

Ω - 9.9Ω = ± 50

10.0

Ωand above = ± 20

0.1

Ω - 0.3Ω = ± 150

0.31

Ω - 0.99Ω = ± 90

1.0

Ω - 9.9Ω= ± 50

10

Ω and above = ± 20

Dielectric

Withstanding Voltage

> 500

> 500

> 500

> 500

> 500

Insulation Resistance

Ω

Operating

Temperature Range

°C

- 65/+ 175

- 65/+ 175

- 65/+ 275

- 65/+ 175

- 65/+ 275

Maximum Working

Voltage

Weight/1000 pieces

(typical)

g

90

165

165

760

760/1675

* Pb containing terminations are not RoHS compliant, exemptions may apply

GLOBAL PART NUMBER INFORMATION

New Global Part Numbering: WSC2515R7000FTA (preferred part numbering format)

WS

C

2

5

1

5

R

7

0

0

0

F

T

A

Historical Part Number example: WSC2515

0.7

Ω 1 % R86 (will continue to be accepted)

WSC2515

0.7

Ω

1 %

R86

HISTORICAL MODEL

RESISTANCE VALUE

TOLERANCE

PACKAGING

CODE

VALUE

R = decimal

K = thousand

54R15 = 54.15

Ω

1K500 = 1.5 k

Ω

SPECIAL

(Dash Number)

(up to 2 digits)

From 1-99 as

applicable

PACKAGING

EA = Lead (Pb)-free, tape/reel

EK = Lead (Pb)-free, bulk

TA = Tin/Lead, Tape/reel (R86)

BA = Tin/Lead, bulk (B43)

GLOBAL MODEL

WSC

WSN

SIZE

01/2

0001

2515

0002

4527

6927

TOLERANCE

D = ± 0.5 %

F = ± 1.0 %

G = ± 2.0 %

H = ± 3.0 %

J = ± 5.0 %

K = ± 10 %

Available

Pb-free

RoHS*

COMPLIANT

e3