High vibration surface-mount aluminum electrolytic capacitors handle 30 g

Figure 1: AFK_V series from Cornell Dubilier. Source: Cornell DubilierCornell Dubilier Electronics, Inc. has introduced a ruggedized SMT aluminum electrolytic capacitor series, able to withstand continuous vibrations of up to 30 g of stress. This durability makes the new AFK_V series especially well-suited to military and transportation applications, as well as in robotics.

The AFK_V series offers low impedance and up to 5,000 hours life at rated voltage. Available capacitance values range from 10 μF to 6,800 μF, with voltage ratings of 6.3 V DC to 100 V DC.

Packaged in a metal V-chip, surface-mount technology (SMT) case, the new capacitors use a combination of three mechanical enhancements that provide greater vibration resistance as compared with the standard SMT package. A support terminal was added to suppress vibration of the plastic support base to the PCB, and therefore reduce contact stress. The support base was extended to create a high retention wall structure to better support the capacitor body. In an effort to reduce internal vibration of the capacitor winding, a larger diameter lead wire is used, which is very effective at eliminating internal lead breakage at critical stress points.

“By offering SMT aluminum electrolytics that are able to withstand high vibration, we give engineers a great solution to improve end-product durability,” said Bill Haddad, product manager. “Circuitry that is on-board rough terrain vehicles or in factory automation can reach high vibration levels,” Haddad continued.

Other applications include industrial power conversion, lighting control and automotive applications.

Learn more at Cornell Dubilier’s website.