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KEMET R52 AEC-Q200 X2 Film Capacitors | Featured Product Spotlight

December 29, 2020 by Mouser Electronics

This Featured Product Spotlight is part of a video series exploring the specifications, applications, and market context of new products.

KEMET R52 AEC-Q200 X2 Film Capacitors

KEMET R52 series X2 EMI suppression capacitors are miniaturized capacitors that provide high capacitance values for use in harsh environments including automotive applications, 5G communications, servers, and more. 

KEMET’s R52 series space-saving X2 class capacitors are offered with capacitance values from 0.15µF to 22µF and with lead spacing from 15mm to 37.5mm.  They offer the highest capacitance density for small footprint capacitors and are 60% smaller than competitive X2 class capacitors, enabling a smaller PCB area, reduced weight, lower costs, and improved reliability. 

The capacitors are rated for 310VAC at 50 or 60Hz and are intended for use in Class X2 line-to-line applications or in series with the AC mains.  They’re well-suited for DC/DC converters in on-board chargers for xEVs, smart grid hardware, EMI filtering in VFD and LED drives, and in high energy density applications such as capacitive power supplies. 

The R52 series features a metallized polypropylene film encapsulated in a self-extinguishing resin and a shell that meets UL 94 V-0 requirements.  The metallized polypropylene film combined with an internal parallel construction provides self-healing properties to prevent catastrophic failure and extend service life.  The capacitors are AEC-Q200 qualified and designed for harsh environments.  They meet THB Grade IIB accelerated life testing requirements, with testing for 500 hours at 310VAC in an 85°C and 85% relative humidity environment, and they’re rated for operation from -40°C to +110°C.  They’re also 100% factory screened at 1,900VDC, with all electrical characteristics verified after testing.  To learn more about the space-saving R52 series X2 EMI suppression capacitors and their applications, visit

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