Datasheet

9© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3093_R46_X2_275_110C • 2/5/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Metallized Polypropylene Film EMI Suppression Capacitors
R46 Series, Class X2, 275 VAC, 110°C
Manual Soldering Recommendations
Following is the recommendation for manual
soldering with a soldering iron.
The soldering iron tip temperature should
besetat350°C(+10°Cmaximum),withthe
solderingdurationnottoexceedmorethan
3 seconds.
Recommended Soldering Temperature
0
50
100
150
200
250
300
350
400
0 1 2 3 4 5 6 7
8
Soldering time (seconds)
Soldering iron bit temperature (°C)
Soldering Process
The implementation of the RoHS directive has resulted in the selection of SnAuCu (SAC) alloys or SnCu alloys as primary
soldermaterial.Thishasincreasedtheliquidustemperaturefrom183°CforSnPbeutecticalloysto217–221°Cforthenew
alloys.Asaresult,theheatstresstothecomponents,eveninwavesoldering,hasincreasedconsiderablyduetohigherpre-
heat and wave temperatures. Polypropylene capacitors are especially sensitive to heat (the melting point of polypropylene
is160–170°C).Wavesolderingcanbedestructive,especiallyformechanicallysmallpolypropylenecapacitors(withlead
spacingof5–15mm).Greatcaremustbetakenduringsoldering.TherecommendedsolderprolesfromKEMETshouldbe
used.ConsultKEMETwithanyquestions.Ingeneral,thewavesolderingcurvefromIECPublication61760-1Edition2serves
as a solid guideline for successful soldering. See Figure 1.
Reowsolderingisnotrecommendedforthrough-holelmcapacitors.Exposingcapacitorstoasolderingproleinexcess
oftheabove-recommendedlimitsmayresulttodegradationoforpermanentdamagetothecapacitors.
Do not place the polypropylene capacitor through an adhesive curing oven to cure resin for surface mount components.
Insertthrough-holepartsaftercuringsurfacemountparts.ConsultKEMETtodiscusstheactualtemperatureprolein
theoven,ifthrough-holecomponentsmustpassthroughtheadhesivecuringprocess.Amaximumtwosolderingcycles
isrecommended.Allowtimeforthecapacitorsurfacetemperaturetoreturntonormaltemperaturebeforeperformingthe
second soldering cycle.
Wave Soldering Recommendations
0
50
100
150
200
250
300
0
40
80
120
160
200
240
Temperature (°C)
Time (s)
ca 2°C/second
ca 3.5°C/second typical
ca 5°C/second
Cooling
2 +3 seconds maximum
115 °C max
T
preheat
∆T < 150°C
100 °C
Preheating
Typical
First wave
Second wave
260°C