Capacitor package innovation prevents surface arc-over

Vishay Intertechnology has released the industry’s first surface-mount X7R Multilayer Ceramic Chip capacitors (MLCCs) with integrated technology to prevent surface arc-over.

The new HVArc Guard® MLCCs (VJ0805, VJ1206, VJ1210, VJ1808 and VJ1812) feature a unique, patent-pending internal structure that prevents surface arc-over at high voltages. This technology ensures that the capacitor always performs its full protection and filtering duties.

At the same time, smaller case sizes can be used in high-volume products, delivering cost and size savings. Higher capacitances can also be achieved, compared to standard high-voltage MLCCs. The new devices provide maximum capacitance in high-voltage ratings and achieve higher voltage breakdown than existing technologies.

The five HVArc Guard capacitors feature capacitances ranging from 100pF to 0.27µF, with voltage ratings from 250V DC to 1000V DC.. The devices eliminate the need for conformal coating, thereby saving assembly materials and build complexity. As a further advantage, they can be used as direct replacements for wire-leaded through-hole capacitors.

 

FEATURES Prevents damage to components Enhances safety for end-users Standard, approved dielectrics High voltage, high capacitance, small footprint Industry-standard surface-mount case sizes

APPLICATIONS Buck or boost DC/DC converters Voltage multipliers for flyback converters Lighting ballasts Lighting systems All mains-operated power supplies

 

 

Vishay / HVArc Guard