Features
Applications
nꢀ Metalꢀfoil
nꢀ ꢀCurrentꢀsensing
nꢀ ꢀPowerꢀsupplies
nꢀ ꢀStepperꢀmotorꢀdrives
nꢀ ꢀInputꢀamplifiers
nꢀ Highꢀpowerꢀdensity
nꢀ Highꢀreliabilityꢀandꢀstability
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
CFN Series Metal Foil, Current Sense Resistor
Electrical Characteristics
Characteristic
CFN0805
CFN1206
Power Rating @ 70 °C
Resistance Value
0.5 W
1 W
5 mΩ, 10 mΩ, 20 mΩ
-55 ℃ ~ +155 ℃
±100 ppm/°C
Operation Temperature Range
Temperature Coefficient of Resistance
Tolerance
±1 %, ±5 %
Reliability Tests
Test Items
Condition of Test
∆R Maximum
1000 hours at rated power, 70 ℃,
1.5 hours “ON”, 0.5 hour “OFF”
Load Life
< ±1 %
Short Time Overload
Moisture no Load
5 X rated power for 5 s
< ±1 %
< ±1 %
85 ℃, 85 %RH, 1000 hrs
-55 ℃ & +155 ℃, 100 cycle,
15 min per extreme condition
Temperature Cycle
Resistance to Soldering Heat
Solderability
< ±1 %
260 ±5 ℃ for 10 ±1 sec
< ±0.5 %
At least 95 % of surface area of electrode shall
be covered with new solder
245 ±5 ℃, 2 ±0.5 sec
High Temperature Exposure
Low Temperature Storage
Substrate Bending
155 ℃, 1000 hrs
< ±1 %
-55 ℃, 1000 hrs
< ±1 %
Bending width 2 mm
100 V DC for 1 minute
< ±0.5 %
>100 MΩ
Insulation Resistance
Derating Curve
Environmental Characteristics
Storage Conditions
Temperature ....................................................................................... +5 °C ~ +35 °C
Humidity.................................................................................................40 % ~ 75 %
Shelf Life.......................................................................2 years from manufacturing date
Solder Recommendations..........................................................................Reflow profile
(Solder: Sn96.5 / Ag3 / Cu0.5)
100
Moisture Sensitivity Level...............................................................................................1
-55
70
155
Ambient Temperature (°C)
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*ꢀ RoHSꢀDirectiveꢀ2002/95/ECꢀJan.ꢀ27,ꢀ2003ꢀincludingꢀannexꢀandꢀRoHSꢀRecastꢀ2011/65/EUꢀJuneꢀ8,ꢀ2011.
**ꢀBournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀtheꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀ
andꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀꢀ
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.