In summary, KEMET’s safety capacitors (or interference suppression capacitors) are used for filtering of EMI on AC mains and are designed to be very robust to protect the user from failure. All safety capacitors should be certified by an approved certification body using the IEC 60384-14 specification. Designers must look for the appropriate marking and certificate to verify the capacitors they are buying are certified. KEMET offers both X and Y capacitors with a variety of lead styles. The CAS Safety Certified MLCCs provide opportunities for miniaturization as compared to leaded disc capacitors.