REV.06/21

CFN Series Metal Foil, Current Sensing Chip Resistor

Specificationsaresubjecttochangewithoutnotice.

Usersshouldverifyactualdeviceperformanceintheirspecificapplications.

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

Reliability Tests

Test Items

Condition of Test

∆R Maximum

Load Life

1000 hours at rated power, 70 ℃,

1.5 hours “ON”, 0.5 hour “OFF”

< ±1 %

Short Time Overload

5 X rated power for 5 sec.

< ±1 %

Moisture no Load

85 ℃, 85 %RH, 1000 hrs.

< ±1 %

Temperature Cycle

-55 ℃ & +155 ℃, 100 cycles,

15 min. per extreme condition

(CFN0402: -55 °C & +125 °C, 100 cycles)

< ±1 %

Resistance to Soldering Heat

260 ±5 ℃ for 10 ±1 sec.

< ±0.5 %

Solderability

245 ±5 ℃, 2 ±0.5 sec.

At least 95 % of surface area of electrode shall

be covered with new solder

High Temperature Exposure

+155 ℃, 1000 hrs.

(CFN0402: +125 °C, 1000 hrs.

< ±1 %

Low Temperature Storage

-55 ℃, 1000 hrs.

< ±1 %

Substrate Bending

Bending width 2 mm

< ±0.5 %

Insulation Resistance

100 V DC for 1 minute

>100 MΩ