Vishay's new screw-terminal aluminium capacitors
Vishay Intertechnology, Inc. has introduced a series of screw-terminal aluminium electrolytic capacitors that allow designers to pack more energy storage into less space.
Available in 11 case sizes ranging from 35 x 60mm to 90 x 220mm, the Vishay BCcomponents 202 PML-ST series offers high capacitance / voltage (CV) values in smaller case sizes than previous-generation solutions while providing increased ripple current to 49.6A, lower ESR down to 2mΩ, and a long useful life of 10,000h at +85°C.
Featuring a cylindrical aluminium case insulated with a blue sleeve and pressure relief in their sealing disc, the electrolytic capacitors provide high CV combinations from 56,000µF at 200V to 15,000µF at 450V.
For example, a CV rating of 2,200µF / 400V – previously available in the 65 x 105mm case size – is now available in the smaller 50 x 105mm case size. For CV ratings with a similar case size to previous-generation solutions, the capacitors offer improved ripple current and ESR. For example, a CV rating of 4,700µF / 400V offers 12% higher ripple current and 16% lower ESR.
As polarised aluminium electrolytic capacitors with a non-solid electrolyte, the RoHS-compliant devices are ideally suited for filtering, buffering, and energy storage in pulsed power applications with a required lifetime of 10 to 15 years. Typical end products include industrial motor drives; rail traction for trains and subways; welding equipment, HVAC, and UPS; wind turbines and solar power inverters; and medical X-ray equipment.
Samples are available from catalogue houses in small quantities. Production quantities of the 202 PML-ST series capacitors are available now, with lead times of 18 to 20 weeks.