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Ceramic capacitors for automotive specifications

RS Components (RS) is now stocking a new range of automotive-grade AC-line-rated ceramic disc capacitors, manufactured by Vishay.

The high-reliability radial-mounting AY1 series is qualified to AEC-Q200, meeting the stringent demands for use in automotive. 

The series has been tested to withstand the rigours of the 85 / 85/1000h test (85°C/85% relative humidity for 1000 hours), as well as passing 1000 temperature cycles from –55 to +125°C. 

Ceramic capacitors for automotive specifications
AY1 series of high-reliability safety capacitors specified to meet AEC-Q200 for Class Y1 AC-line filtering and electric vehicle applications

In addition, the series also passes the high-voltage 10 kV pulse test (10 per polarity).

The devices also meet IEC60384-14.4, which provides specifications for fixed capacitors for EMI and RFI generation and suppression, as well as for mains supply connection. 

The series is therefore ideally suited for deployment as Class Y1 safety capacitors in industrial and automotive environments, for example in AC-line filtering and primary-secondary coupling on battery chargers for various types of electric vehicles including HEV/PHEVs (hybrid/plug-in hybrid electric vehicles), or as filter capacitors on DC/DC converters in PHEVs.

Key electrical characteristics include a capacitance range from 470 up to 4700pF with a tolerance of 20% and voltage ratings up to Class X1 (760 VAC)/Y1 (500 VAC) and 1500 VDC. 

The capacitor’s ceramic disc is copper plated on both sides and features tin-plated copper-clad-steel connection leads with diameters of 0.6 or 0.8 mm. 

Available with straight leads with spacings of 10.0 or 12.5 mm, the devices are encapsulated in flame-retardant epoxy resin, in accordance with UL94V0.

The high-reliability automotive-grade AY1 series from Vishay is in stock now at RS in the EMEA and Asia Pacific regions. 

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