Datasheet

7© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3108_PHE844_X1_440-480 • 2/28/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Film Capacitors – Metallized Polypropylene Film EMI Suppression Capacitors
PHE844, Class X1, 440/480 VAC, 105°C
Soldering Process
The implementation of the RoHS directive has resulted in the selection of SnAuCu (SAC) alloys or SnCu alloys as primary solder.
Thisimplementationhasincreasedtheliquidustemperaturefrom183ºCforSnPbeutecticalloysto217–221ºC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 –
170ºC).Wavesolderingcanbedestructive,especiallyformechanicallysmallpolypropylenecapacitors(withleadspacingof5
–15mm),and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
recommended limits may result in 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the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oftwosolderingcyclesisrecommended.
Allow time for the capacitor surface temperature to return to normal before the second soldering cycle.
Manual Soldering Recommendations
Following is the recommendation for manual
soldering with a soldering iron.
Soldering iron tip temperature should be set
at350°C(+10°Cmaximum),withthesoldering
durationnottoexceed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)
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
Wave Soldering Recommendations