Tiny snap-in power aluminium capacitors target solar inverters and industrial motors

Vishay has extended its 157 PUM-SI series of ultra-miniature snap-in power alumiinium electrolytic capacitors with a higher rated voltage of 500V. Designed for power supplies, industrial motor controls, and solar PV inverters, the enhanced devices save board space and lower costs by allowing designers to utilize one component instead of two 250V capacitors. Featuring a cylindrical aluminium case, insulated with a blue sleeve, the snap-in capacitors are available in 23 case sizes ranging from 22mm x 25mm to 35mm x 60mm. At 500V, the devices feature a maximum operating temperature to +85C and a long useful life of = 5,000 hours. The electrolytic capacitors with a non-solid electrolyte are ideal for smoothing, filtering, and energy storage in pulsed power applications. The RoHS-compliant capacitors are also available in a keyed polarity snap-in version, says the company.