CFN Series Metal Foil, Current Sensing Chip Resistor

Construction

Typical Part Marking

Specificationsaresubjecttochangewithoutnotice.

Usersshouldverifyactualdeviceperformanceintheirspecificapplications.

Theproductsdescribedhereinandthisdocumentaresubjecttospecificlegaldisclaimersassetforthonthelastpageofthisdocument,andatwww.bourns.com/docs/legal/disclaimer.pdf.

Code

Resistance

Value

(milliohms)

Model

R005

5

CFN0603

R010

10

CFN0402, 0603, 0805, 1206

R020

20

CFN0402, 0603, 0805, 1206

R030

30

CFN0805

R040

40

CFN1206

Popular Resistance Values*

*Please consult factory for other resistance values.

Model

Resistance

A

L

B

CFN0402

10 ≤ R < 20

0.70

(.027)

1.20

(.047)

0.45

(.018)

CFN0603

10 ≤ R < 20

1.00

(.039)

2.80

(.110)

0.60

(.024)

CFN0805

10 ≤ R < 30

1.40

(.055)

3.20

(.126)

1.20

(.047)

CFN1206

20 ≤ R < 30

1.80

(.071)

4.70

(.185)

1.60

(.063)

R = 40

2.20

(.087)

Recommended Solder Pad Dimensions

L

Cu Trace

B

A

Sensing Trace

DIMENSIONS:

MM

(INCHES)

TOP PROTECTIVE

COATING

SOLDER

COATING

ALUMINA SUBSTRATE

METAL FOIL

BOTTOM PROTECTIVE COATING

NICKEL

UNDERLAY

CFN0402 & CFN0603:

No marking.

CFN0805 & CFN1206:

RESISTANCE CODE:

005 = 5 mΩ

6.5 = 6.5 mΩ

010 = 10 mΩ

020 = 20 mΩ