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07/05/25

Thick Film General Purpose Chip Resistors

WR12, WR08, WR06, WR04

Newark.com/multicomp-pro

Farnell.com/multicomp-pro

sg.element14.com/b/multicomp-pro

Note:

1. This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication 60115-8”

2. Max. Operation Voltage: So called RCWV (Rated Continuous Working Voltage) is determined by

RCWV = √ Rated Power × Resistance Value or Max. RCWV listed above, whichever is lower.

3. The resistance of Jumper is defined <0.05Ω

Diagram

Marking

3-digits marking (±1%: 0603)

WR12

WR08

WR06

WR04

L

3.1 ± 0.1

2 ± 0.1

1.6 ± 0.1

1 ± 0.05

W

1.6 ± 0.1

1.25 ± 0.1

0.8 ± 0.1

0.50 ± 0.05

T

0.6 ± 0.15

0.5 ± 0.15

0.45 ± 0.15

0.35 ± 0.05

Tb

0.45 ± 0.2

0.4 ± 0.2

0.3 ± 0.15

0.25 ± 0.1

Tt

0.5 ± 0.2

0.4 ± 0.2

0.3 ± 0.1

0.2 ± 0.1

Dimensions : Millimetres

Size \ Nr. of digit of code\tolerance

±5%

±1%

1206 (3216)

3-digits marking

4-digits marking

0805 (2012)

3-digits marking

4-digits marking

0603 (1608)

3-digits marking

3-digits marking

0402(1005)

NO MARKING

3-digits marking (±5% : 1206 & 0805 & 0603)

Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value.

Nominal resistance

Description

1. E-24 series

As 0603 WR06X ±5%.

2. E-96 series

The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of

resistance value :

Y=10-2, X=10-1, A=10⁰, B=101,C=10², D=10³, E=10⁴, F=10⁵

EX : 17.8Ω=25X, 178Ω=25A, 1K78 =25B

17K8=25C, 178K=25D, 1M78=25E

3. Remark

There is no marking for the items are not under E-24 and E-96 series

CODE R_value CODE R_value CODE R_Value CODE

R_val-

ue

CODE

R_val-

ue

CODE

R_val-

ue

CODE

R_val-

ue

CODE

R_val-

ue

01

100

13

133

25

178

37

237

49

316

61

422

73

562

85

750

02

102

14

137

26

182

38

243

50

324

62

432

74

576

86

768

03

105

15

140

27

187

39

249

51

332

63

442

75

590

87

787