Low Value (down to 0.001

Ω), Surface Mount

www.vishay.com

For technical questions contact: ww2bresistors@vishay.com

Document Number: 30120

200

Revision: 20-Apr-06

WSH2818

Vishay Dale

FEATURES

• Improved thermal management incorporated

into design

• Ideal for all types of current sensing, voltage

division and pulse applications including

switching and linear power supplies,

instruments, power amplifiers

• Proprietary processing technique produces

extremely low resistance values

• All welded construction

• Solid metal Nickel-chrome or Manganese-copper alloy

resistive element with low TCR (< 20 ppm/°C)

• Lead (Pb)-free construction

• Very low inductance (< 5 nH)

• Excellent frequency response to 50 MHz

• Low thermal EMF (< 3 µV/°C)

* The WSH2818 is rated at 5 watts with maximum surface temperature of 200 °C

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

POWER RATING

W

TOLERANCE

%

RESISTANCE RANGE

Ω

WSH2818

5*

1.0

0.001 - 0.1

TECHNICAL SPECIFICATIONS

PARAMETER

UNIT

WSH2818

Temperature Coefficient

ppm/°C

± 200 for 1 m

Ω to 5.99 mΩ

± 75 for 6 m

Ω to 100 mΩ

Inductance

ηH< 5

Operating Temperature Range

°C

- 65/+ 170

Maximum Continuous Current

A

Weight/1000 pieces

g

126

GLOBAL PART NUMBER INFORMATION

Global Part Numbering: WSH2818R1000FEA

GLOBAL MODEL

RESISTANCE VALUE

TOLERANCE CODE

PACKING CODE

SPECIAL

WSH2818

L = Milliohm*

R = Decimal

4L000 = 0.004

Ω

R0100 = 0.01

Ω

* use “L” for resistance

values < 0.01

Ω

F = ± 1.0 %

J = ± 5.0 %

EA = Lead (Pb)-free, Tape/Reel

EK = Lead (Pb)-free, Bulk

(Dash number up to

2 digits)

From 1 - 99

as applicable

W8

1

8

2

H

SR

1

0

00

F

EA

RoHS

COMPLIANT

Pb-free

e3