Home Products Resources Applications Events KEMET.com 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 Ceramic Disc Film Ceramic Overview Part Number System Product Chart 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. Important Links Product Brief Datasheet How to Buy Related Articles & Videos Introducing Solutions for Space Constrained Mains Powered Applications Ceramic Safety SMD Digital Datasheet Ceramic Disc Overview Benefits & Applications 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. Important Links Browse Products Film Overview Product Selection Typical Applications 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. Product Series Applications Benefits & Characteristics R53 X2 Metallized Polypropylene Film EMI Suppression Capacitor For Harsh Environment R53 series is ideal for harsh environments and is AEC–Q200 qualified. Due to its miniaturized dimensions, this series is an excellent option in space-constrained applications. X2 CLASS (IEC 60384-14) THB Grade IIIB: 85°C, 85% R.H., 1,000h at 310VAC / 560VDC according to IEC 60384-14 AEC-Q200 qualified Approvals: ENEC, UL, cUL, CQC Low Halogen content according to JS709C Capacitance Range: 0.1 μF – 22 μF Rated Voltage: 310 VAC 50 / 60Hz, 560 VDC Operating Temperature Range: -40°C to +110°C Recommended DC Voltage: ≤ 630 VDC R52 MKP X2, Miniaturized Class IIB Harsh Environment For worldwide use in electromagnetic interference (EMI) suppression in across-the-line applications that require X2 safety classification. Typical applications include connection in series with the mains, capacitive power supplies and energy meters, with special emphasis in automotive applications for severe ambient conditions. Approvals: ENEC, UL, cUL, CQC THB Grade IIB: 85°C, 85% RH, 500 hours at URAC acc. to IEC 60384-14 Rated voltage: 310 VAC 50/60 Hz Capacitance range: 47 nF – 22 µF Lead spacing: 10.0 – 37.5 mm Capacitance tolerance: ±20%, ±10% Climatic category 40/110/56, IEC 60068-1 Tape & Reel in accordance with IEC 60286-2 RoHS compliant and lead-free terminations Operating temperature range of −40°C to +110°C 100% screening factory test at 1,900 VDC Self healing properties Automotive (AEC-Q200) grade R41T MKP Y2/X1, High Temperature Class IIIB Harsh Environment For use in electromagnetic interference (EMI) suppression filter in “line-to-ground” and “across-the-line” applications, requiring Y2/X1 safety classification. Approvals: ENEC, UL, cUL, CQC Class Y2/X1 (IEC 60384-14) THB Grade IIIB: 85°C, 85% RH, 1,000 hours at 300 V URAC/1,500 V URDC acc. to IEC 60384-14 Rated voltage: 300 VAC 50/60 Hz Capacitance range: 0.0022 – 1 µF Lead spacing: 10 – 37.5 mm Capacitance tolerance: ±20%, ±10% Climatic category 40/110/56, IEC 60068-1 Tape and reel in accordance with IEC 60286-2 RoHS compliant and lead-free terminations Operating temperature range of −40°C to +125°C Self-healing properties Automotive (AEC–Q200) grade F862-V054 MKP X2, High Current Class IIB Harsh Environment Typical applications include connection in series with the mains, capacitive power supplies and energy meters, with special emphasis in automotive applications for severe ambient conditions. Approvals: ENEC, UL, cUL, CQC THB Grade IIB: 85°C, 85% RH, 500 hours at URAC acc. to IEC 60384-14 (not for Halogen-Free variant) Rated voltage: 310 VAC 50/60 Hz Capacitance range: 0.1 – 4.7 µF Lead spacing: 15.0 – 27.5 mm Capacitance tolerance: ±20%, ±10% Climatic category: 40/110/56, IEC 60068–1 Tape & Reel in accordance with IEC 60286–2 RoHS compliant and lead-free terminations Operating temperature range of −40˚C to +110˚C 100% screening factory test at 1,900 VDC Qualification based on AEC–Q200 guidelines SMP253 Y2, SMD Metallized Paper High dV/dt, Harsh Environment For worldwide use as an electromagnetic interference suppressor in all Y2 applications, line-to-earth. High dv/dt capability Impregnated paper that ensures excellent stability and reliability properties, particularly in applications with continuous operation Approvals: ENEC, cULus Rated voltage: 250 VAC 50/60 Hz, maximum recommended DC voltage 1,500 VDC Capacitance range: 0.001 – 0.0047 µF Size code: 5045, 12.7 mm Capacitance tolerance: ±20% Important Links R53 Product Brief R53 App Note Webinar: Advances in Film Technology R46H X2 125°C Datasheet R47 V057 Datasheet PHE844 Datasheet PHE845 Datasheet R52 Datasheet R52 Blog Post R41T Datasheet SMP253 Datasheet F862-V054 Datasheet F862-V054/SMP253 Blog Post EMI Suppression Capacitors Product Guide Film Lifetime Tool How to Buy We follow trends so you don’t have to. Sign up for the KEMET Circuit and be among the first to get all the latest information on trends in technology. 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