KEMET Ask An FAE

Ask an FAE… What’s that?

We take the top questions KEMET’s Field Application Engineers (FAEs) receive and answer them. These questions are sent in with the Ask an FAE button below and from live customer discussions.

Think you know capacitors and passive components? Don’t worry if you don’t. That’s why we create these videos.  Each episode has links to additional information. So, if you need to dig a little bit deeper or you aren’t sure what “Self-Healing” is, we can help you learn even more.

The videos for each episode are below and on the KEMET YouTube Channel.

Have a question you want to ask? No problem. Click the “Ask an FAE” button, and ask away. Even if we do not answer your question “on the air,” we will still send you answer.

Every other week, we post a new technical video. Subscribe to our YouTube channel or the KEMET Engineering Center Newsletter (bottom of the page!), and you’ll know when.

Episode List

 

KEMET Ask An FAE Ceramic Capacitance Change

Why do ceramic capacitors change with applied voltage? | Ask FAE #1

First episode of KEMET's Ask An FAE. Per Loof asks James to explain why ceramic capacitors change with applied voltage.

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X2 Series Capacitor Smart Meter

Picking Smart Meter Capacitors | Ask FAE #2

Many power supplies use X- and Y- capacitors in their AC stage to shield against RFI, or Electro-Magnetic Interference (EMI). The most common reason we hear for using an X2 capacitor in a smart meter design is that the designer wants “a UL rating.” This episode of KEMET's Ask an FAE addresses why not all X2 capacitors are suited for smart meter series coupling designs.

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Derating Tantalum Capacitors - Ask FAE #3

Derate tantalum capacitors by how much? | Ask An FAE #3

Demystify the confusing topic of voltage derating tantalum capacitors. The rule of thumb to voltage derate 50% doesn't apply to all capacitors.

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Tiny High Voltage Capacitor ArcShield

Tiny High Voltage Capacitor, ArcShield | Ask An FAE #4

Packing more capacitance at high voltage into a ceramic capacitor needs a cleverly designed electrode pattern. To prevent surface arcing, ArcShield contains a Faraday cage in a 1,000 V package as small at 0603. Mark explains to James how ArcShield achieves this performance and what it makes it different from other high-voltage ceramic surface mount capacitors.

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