New electrolytics poised to replace banks of costly wet tantalum capacitors

Recently introduced as the world’s only hermetic aluminium electrolytic capacitor with a glass-to-metal seal, Cornell Dubilier's new MLSH Series is now available through New Yorker Electronics. With no dry-out mechanism and high capacitance retention at low temperatures, the technology in the MLSH Series is poised to replace banks of costly wet tantalum capacitors, says the company. The new Slimpack, type MLSH, is the first in a series of hermetically-sealed aluminium electrolytic capacitors that the company plans to introduce over the next several months. With its glass-to-metal seal that prevents dry-out, this capacitor technology has extraordinarily long life in order to meet the most demanding defence and aerospace applications. Cornell Dubilier expects the technology to replace parallel and series banks of wet tantalum capacitors for new and existing designs, especially where bulk storage is paramount. According to the manufacturer, the MLSH Slimpack (measuring 1 x 1.5 x 0.5 inches) will weigh less and will have more capacitance than a parallel bank of three or more wet tantalum capacitors as if at -55C. High capacitance at low temperature is a key requirement for power supplies in demanding operational environments. In addition to its performance advantages at low temperature, the technology is expected to have a significantly lower cost than a comparable bank of wet tantalum capacitors, says the company.