R4Y, Y1, EMI Suppression

R4Y is a radial metalized polypropylene Y1 certified and AEC-Q200 qualified EMI suppression capacitor, featuring a high operating temperature and a long lifetime in harsh environments. R4Y is encapsulated with self-extinguishing resin, in a box of material meeting the requirements of UL 94 V–0.


  • Approvals: ENEC, UL, cUL, CQC
  • Class Y1 (IEC 60384-14)
  • THB Grade IIB: 85°C, 85% RH, 500 hours at 500 V URAC , acc. to IEC 60384-14
  • Rated voltage: 500 VAC 50/60 Hz Capacitance range: 0.00047 – 0.033 µF
  • Lead spacing: 15 – 22.5 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


For use in electromagnetic interference (EMI) suppression filter in "line-to-ground" applications, requiring Y1 safety classification. Suitable for use in situations where failure of the capacitor could lead to danger of electric shock.

AC Input/Output EMI filtering

  • EV charging station
  • Industrial

HVDC Filtering in Automotive

  • OBC
  • DC/DC converters
  • E-Compressors
  • HV Heaters
  • Traction Inverters