Film Capacitors
Electrolytic Capacitors
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Insulated sleeving

An insulating sleeve of approved material is placed over the ceramic Y capacitor, at higher total cost. Read how the sleeve can be eliminated.

Keep-out zones

An open area is left around the ceramic Y capacitors, creating a footprint penalty. Read how the keep-out zone can be eliminated.

Additional resources:

• View an SMPS photo with a schematic showing film capacitor applications.
• Read the four ways to reduce your footprint through appropriate capacitor selection.
• If you wish to have a printed version download the Acrobat file or contact us and ask for a printed sheet to be mailed to you.
• Get more details on X and Y capacitors including a handy selector chart.
• Check out other tech notes related to capacitors used in SMPS.