KEMET CAS series SMD MLCC capacitors

KEMET’s CAS surface mount safety certified capacitors are specifically designed for interference-suppression AC line filtering applications. When comparing to radial leaded disc capacitors, the CAS surface mount form factor provides engineers the ability to miniaturize their designs with a higher density solution. Having internationally recognized safety certifications, these capacitors are well-suited for applications that require keeping potentially disruptive or damaging line transients and EMI out of susceptible equipment. They are also an ideal solution when needing to suppress line disturbances at the source. 

Safety Certified Capacitors are classified as either X and/or Y capacitors. Class X capacitors are primarily used in line-to line (across-the-line) applications. Should the capacitor fail in this application, there is no danger of electric shock to humans but could result in a risk of fire. The Class Y capacitor is primarily used in line-to-ground (line by-pass) applications. In this application, failure of the capacitor could lead to danger of electric shock. 

With a working voltage of 250 VAC in line-to-line (Class X) and 250 VAC in line-to-ground (Class Y) applications, these safety capacitors meet the impulse test criteria outlined in IEC Standard 60384. Meeting subclass X1 and Y2 requirements, these devices are certified to withstand impulses up to 5 KV (X1/Y2) and 2.5 KV (X2) respectively.

Features

• Safety Certified to IEC 60384-14
• Class X1/Y2, X2
• 250 VAC rating
• 2.5 kV and 5 kV Impulse Voltages
• Reliable operation up to 125°C
• Available in C0G and X7R Dielectrics
• Case sizes 1808, 1812, 2211, and 2220
• Capacitance offerings ranging from 3.0 pF to 22 nF
• Available capacitance tolerances from ±0.5 pF to ±20%
• RoHS compliant

Applications

• Line-to-line (Class X) filtering
• Line-to-ground (Class Y) filtering
• Antenna coupling
• Primary and secondary coupling (switching power supplies)
• Line disturbances suppression (motors and motor controls, relays, switching power supplies, and inverters)