© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com F3092_F862_X2_310 • 10/2/2017 8
Film Capacitors – AC Line EMI Suppression and RC Networks
F862 Metallized Polypropylene Film for Harsh Environmental Conditions, Class X2, 310 VAC (Automotive Grade)
Manual Soldering Recommendations
Following is the recommendation for manual
soldering with a soldering iron.
The soldering iron tip temperature should
besetat350°C(+10°Cmaximum)withthe
soldering duration not to exceed more than 3
seconds.
Recommended Soldering Temperature
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Soldering time (seconds)
Soldering iron bit temperature (°C)
Soldering Process
The implementation of the RoHS directive has resulted in the selection of SnAgCu (SAC) alloys or SnCu alloys as primary solder.
Thishasincreasedtheliquidustemperaturefromthatof183°CforSnPbeutecticalloyto217–221°Cforthenewalloys.Asa
result,theheatstresstothecomponents,eveninwavesoldering,hasincreasedconsiderablyduetohigherpre-heatandwave
temperatures.Polypropylenecapacitorsareespeciallysensitivetoheat(themeltingpointofpolypropyleneis160–170°C).
Wavesolderingcanbedestructive,especiallyformechanicallysmallpolypropylenecapacitors(withleadspacingof5mmto
15mm),andgreatcarehastobetakenduringsoldering.TherecommendedsolderprolesfromKEMETshouldbeused.Please
consultKEMETwithanyquestions.Ingeneral,thewavesolderingcurvefromIECPublication61760–1Edition2servesasasolid
guideline for successful soldering. Please see Figure 1.
Reowsolderingisnotrecommendedforthrough-holelmcapacitors.Exposingcapacitorstoasolderingproleinexcessofthe
abovetherecommendedlimitsmayresulttodegradationorpermanentdamagetothecapacitors.
Do not place the polypropylene capacitor through an adhesive curing oven to cure resin for surface mount components. Insert
through-holepartsafterthecuringofsurfacemountparts.ConsultKEMETtodiscusstheactualtemperatureproleintheoven,
if through-hole components must pass through the adhesive curing process. A maximum two soldering cycles is recommended.
Pleaseallowtimeforthecapacitorsurfacetemperaturetoreturntoanormaltemperaturebeforethesecondsolderingcycle.
Wave Soldering Recommendations
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ca 2°C/second
ca 3.5°C/second typical
ca 5°C/second
2 +3 seconds maximum
preheat
∆T <150°C
Typical
260°C