Vishay / BC Components AY1 Automotive Grade AC Safety Capacitors

Vishay / BC Components AY1 Automotive Grade AC Capacitors are ceramic disc capacitors with Class X1 and Class Y1 versions. The Class X1 capacitors are designed for 760VAC rated voltage and Class Y1 capacitors are designed for 500VAC rated voltage. These capacitors withstand 85/85/1000h test and are able to pass 1000 temperature cycles. The AY1 safety capacitors are AEC-Q200 qualified and feature high reliability and single layer AC disk. Typical applications include capacitors for AC line filter and primary-secondary coupling on battery chargers and filter capacitors on DC/DC converters for PHEV/EV and HEV.

The 72-AY1-KIT-GA is a sample kit of AY1 capacitors that contains a total of 8 capacitance values with 10 pieces each. This kit offers a 20% tolerance.


  • Automotive grade AC line rated ceramic disc capacitors
  • AEC-Q200 qualified
  • Withstands 85/85/1000 h test
  • Passes 1000 temperature cycles (from -55°C to 125°C)
  • High reliability
  • Single layer AC disc safety capacitors
  • Production Part Applying Process (PPAP) is available


  • Greater than 10000MΩ insulation resistance
  • ±20% (code M) capacitance tolerance
  • Class 2 dissipation factor (maximum 2.5%)
  • Epoxy resin, isolating, and flame retardant coating according to UL 94 V-0
  • 470pF to 4700pF capacitance range
  • Y5U ceramic dielectric
  • -55°C to 125°C operating temperature range
  • Approvals:
    • IEC 60384-14.4
    • UL 60384-14
    • DIN EN 60384-14
    • CSA E60384-1:03 and CSA E60384-14:09
    • CQC (IEC 60384-14)

Mechanical Drawing

Mechanical Drawing - Vishay / BC Components AY1 Automotive Grade AC Safety Capacitors

Performance Graphs


Infographic - Vishay / BC Components AY1 Automotive Grade AC Safety Capacitors
Published: 2019-01-21 | Updated: 2023-02-15