© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com

F3008_R47_X2_520 • 10/20/2014

8

Metallized Polypropylene Film EMI Suppression Capacitors

R47 Series, Class X2, 520 VAC, 85ºC (Automotive Grade)

Soldering Process cont'd

Selective Soldering Recommendations

Selectivedipsolderingisavariationofreflowsoldering.Inthismethod,theprintedcircuitboardwiththrough-holecomponentstobe

solderedispreheatedandtransportedoverthesolderbathasinnormalflowsolderingwithouttouchingthesolder.Whentheboardis

over the bath, it is stopped and pre-designed solder pots are lifted from the bath with molten solder only at the places of the selected

components, and pressed against the lower surface of the board to solder the components.

Thetemperatureprofileforselectivesolderingissimilartothedoublewaveflowsolderingoutlinedinthisdocument,however, instead

of two baths, there is only one bath with a time from 3 to 10 seconds. In selective soldering, the risk of overheating is greater than

indoublewaveflowsoldering,andgreatcaremustbetakensothatthepartsarenotoverheated.

Construction

Detailed Cross Section

Self-Extinguishing

Resin

Molded Plastic

Case

Molded Plastic

Case

Leads

Metal Contact

Layer

Metal Contact

Layer

Margin

Single-sided Metallized

Polypropylene Film

(Second Layer)

Single-sided Metallized

Polypropylene Film

(First Layer)

Margin

Margin

2 Sections

Single-sided

Metallized

Polypropylene

Film

FILM WINDING SCHEME OPTIONS

1 Section

Single-sided

Metallized

Polypropylene

Film

Single-sided

Metallized

Polypropylene

Film

Single-sided

Metallized

Polypropylene

Film

Single-sided Metallized Polypropylene Film

2 Sections

3 Sections

4 Sections

Single-sided

Metallized

Polypropylene

Film

Polypropylene

Film Dielectric

1 Section

Double-sided Metallized Polyester Film

3 Sections

Double-sided

Metallized

Polyester Carrier

Film

Polypropylene

Film Dielectric

Double-sided

Metallized

Polyester Carrier

Film

2 Sections

Polypropylene

Film Dielectric

Double-sided

Metallized

Polyester Carrier

Film

Single-sided

Metallized

Polypropylene

Film

4 Sections

Polypropylene

Film Dielectric

Double-sided

Metallized

Polyester Carrier

Film

Polypropylene

Film Dielectric

1 Section

Polypropylene Film/Foil

2 Sections

Metal Foil

Metal Foil

Single-sided

Metallized

Polypropylene

Film

Polypropylene

Film Dielectric

Metallized Polyphenylene

Sulfide Film with

Vacuum-Evaporated

Aluminum Electrodes

1 Section

Metallized Polyphenylene

Sulfide Film (SMR)

Metallized

Impregnated

Paper

1 Section

Metallized Impregnated Paper

Single-sided

Metallized

Polyester

Film

1 Section

Single-sided Metallized Polyester Film

Winding Scheme