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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.
The market for smartphone apps is exploding, as developers find inventive ways to take advantage of the fantastic features in today’s handsets. These include large, high-resolution color displays, multi-megapixel/HD-video cameras, built-in GPS, and always-on connectivity that enables users to share their experiences instantaneously. How did one of customers solve EMI problems with a Flex Suppressor?
Demystify the confusing topic of voltage derating tantalum capacitors. The rule of thumb to voltage derate 50% doesn't apply to all capacitors.
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.