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Document Number: 30110

206

Revision: 29-Mar-05

WSL3921 and WSL5931

Vishay Dale

FEATURES

• 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 Iron-chrome or Manganese-copper alloy

resistive element

• Very low inductance 0.5nH to 5nH

• Excellent frequency response

• Low thermal EMF

• Part Marking: no part marking on these parts

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

POWER RATING

W

TOLERANCE

%

RESISTANCE VALUES

AVAILABLE

m

Ω

WEIGHT

(TYPICAL)

g/1000 pcs

WSL3921

3.0

1.0 & 5.0

0.3, 0.5, 1, 2, 3, 4

281

WSL5931

5.0

1.0 & 5.0

0.2, 0.3, 0.5, 1, 2, 3

398

TECHNICAL SPECIFICATIONS

PARAMETER

UNIT

WSL RESISTOR CHARACTERISTICS

Temperature Coefficient

ppm/°C

± 175 for 0.3m

Ω and 0.5mΩ, ± 75 for 1mΩ to 4mΩ

Operating Temperature Range

°C

- 65 / + 170

Maximum Working Voltage

V

GLOBAL MODEL

SPECIAL

WSL3637

L = Milliohm

F =

± 1.0%

EA = Lead Free, Tape/Reel

(Dash Number)

WSL5931

L5000 = 0.0005

Ω

J =

± 5.0%

EK = Lead Free, Bulk

(up to 2 digits)

From 1-99 as

applicable

GLOBAL PART NUMBER INFORMATION

Global Part Numbering: WSL3921L5000FEA

W

S

L

3

9

21L

50

00

F

E

A

RESISTANCE VALUE

TOLERANCE CODE

PACKAGING CODE