Cornell Dubilier introduces ultra-flat aluminium electrolytic capacitors


The new ULP Series of Ultra-Low-Profile aluminium electrolytic capacitors from Cornell Dubilier has been pronounced a real “game-changer” for engineers designing compact electronic devices.

A single ULP series capacitor saves space by replacing large arrays of SMT capacitors. Designed specifically for applications requiring bulk capacitance and the lowest board profiles, the ULP series offers considerably higher energy density than arrays of surface mount capacitors. ULP technology allows the circuit designer to use a single component that saves space, weight and cost with no adverse impacts on reliability.

Due to its lightweight, the ULP is ideal for use in portable devices and is well-suited for a wide range of applications where height profile, board space, and weight are critical design factors.  In such situations, the ULP is not only cost-competitive, but it also improves circuit reliability through the use of a single component versus an entire array of SMT capacitors.

“With energy density exceeding 0.4 J/cc, a single ULP capacitor provides much greater bulk storage in a smaller footprint than a bank of low-profile SMT capacitors. The technology is particularly effective at displacing parallel banks of SMT solid tantalum capacitors to achieve high capacitance on the board.”

Mario DiPietro, Product Manager at Cornell Dubilier.

Ultra-Low-Profile aluminium electrolytic capacitors

  • Offered in package heights of 2.2 and 3.2mm
  • Capacitance values range from 500µF to 24,000µF
  • Working voltages range from 4 to 63 WVDC
  • Operating life of 3,000 hours @ 85° C
  • Unlike solid tantalum capacitors, type ULP capacitors do not require voltage derating.

Housed in a highly durable nickel-silver case, the ULP is rated at 10g for vibration withstand.  As thin as 2.2mm, ULP Series capacitors are easy to design-in. With flat ribbon-lead style terminations, it is even possible to mount the device off-board. This provides added design flexibility to maximize the use of available space. Developed by Cornell Dubilier, the ULP breaks away from the cylindrical designs usually associated with aluminium electrolytic capacitors. The ULP design is an outgrowth of the company’s more than twenty years of experience in the manufacture of aerospace-grade flat capacitors.

For more information about samples and availability please contact Wavelength Electronics Ltd on This email address is being protected from spambots. You need JavaScript enabled to view it.

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