Electronic Design

Ultra-Thin Double-Layer Caps Handle Peak Power Chores

The DMD and DME series thin, low-resistance electrical double-layer capacitors (EDLCs), also referred to as supercapacitors, store charge in an electrical double layer formed at the solid-liquid interface. Enabling a high capacitance and high voltage with very low equivalent series resistance (ESR) over a wide temperature range, the EDLCs provide higher energy storage and power density than any existing conventional capacitor technology. Features include ESRs as low as 30 mΩ at 1 kHz, a peak voltage of 2.7V per cell, and an operating temperature range from -30°C to +70°C. Additionally, the components deliver maintenance-free power storage with a useful life exceeding 100,000 cycles. Available in 2.7V and 5.5V options, the 2.7V single cell measures only 20.5 mm x 18.5 mm x 1.5mm with a 700 mF value.  The 5.5V double cell comes in a thin 20.5 mm x 18.5 mm x 3.0 mm package in a 350 mF value.  The EDLC product series will be expanded to include additional values in 2012. Sample pricing for the 2.7V 700-mF is $4 and $6.50 for the 5.5V 350-mF option. MURATA ELECTRONICS NORTH AMERICA INC., Smyrna, GA. (770) 436-1300.

TAGS: Components
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