KEMET’s internationally recognized safety certified capacitors are specifically developed for interference suppression AC line filtering applications. These capacitors are designed to keep potentially disruptive or damaging line transients and EMI out of susceptible equipment. They are also an ideal solution for suppressing line disturbances at the source.

All safety standard recognized capacitors are classified as either X and/or Y capacitors. Class X capacitors are primarily used in line-to line (across-the-line) applications. In this application, there is no danger of electric shock to humans should the capacitor fail, but could result in a risk of fire. The Class Y capacitor is primarily used in line-to-ground (line bypass) applications. In this application, failure of the capacitor could lead to danger of electric shock.

Product Selection

Ceramic

KEMET’s Ceramic surface mount (SMD) 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.

Ceramic Disc

KEMET’s 900 encapsulated radial leaded ceramic disc capacitors are specifically designed for interference-suppression AC line filtering applications. 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. In this application, there is no danger of electric shock to humans should the capacitor fail, 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.

Benefits

• Safety standard recognized (IEC 60384–14)
• Reliable operation up to 125°C
• Class X1/Y2
• 5.0 mm, 7.5 mm, and 10 mm lead spacing
• Lead (Pb)-free and RoHS Compliant
• Halogen-free
• Capacitance offerings ranging from 10 pF up to 10 nF
• Available capacitance tolerances of ±5%, ±10%, and ±20%
• High reliability
• Preformed (crimped) or straight lead configurations
• Non-polar device, minimizing installation concerns
• Encapsulation meets flammability standard UL 94 V–0

Applications

Typical applications include:
• 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)

Important Links

Film

KEMET’s safety certified film capacitors are specifically designed for conducted emissions attenuation in AC line filtering applications. The self healing capability of film capacitors makes them a great choice for safety across power lines as well as 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.
The introduction of the R41T series provides the capability of using film capacitors in harsh environments where 85°C/85% RH is a requirement as well as the 125°C operating temperature capability.

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