Electrical Double-Layer Capacitors operate from -30 to +85°C.

Press Release Summary:

Employing active carbon technology, DMG Series offers 5-year life span at 70°C. Single-cell 2.1 V version provides nominal capacity of 700 mF, 1.4 mm profile, and ESR of 70 mW at 1 kHz, while double-cell 4.2 V version features nominal capacity of 350 mF, 2.8 mm profile, and ESR of 130 mW at 1 kHz. Typical applications include smart meters and memory backup in home appliances, mobile phones, information devices, and energy harvesting storage systems.

Original Press Release:

Supercapacitor Line Expanded by Murata

New Electrical Double-Layer Capacitors Feature High Temperature Range and Advanced Internal Structure for a Longer Life Cycle

Smyrna, GA, - Murata Americas today announced the addition of the DMG series to the company's line of thin, low-resistance, electrical double-layer capacitors (EDLCs). The DMG supercapacitors, which provide high power back-up, achieve high reliability with a five-year life span at 70°C, making them an ideal choice for enterprise solid state drive (SSD) manufacturers and telecom last gasp applications. In addition, supercapacitors play a role in energy conservation applications, from memory backup in home appliances, mobile phones, information devices, and energy harvesting storage systems. Smart meters are also a key application for the DMG series as the full operating temperature range is -30°C to +85°C.

The innovation behind Murata's high performance DMG EDLC is based on active carbon technology. Unlike traditional energy storage devices, the carbon, which is used as an electrode, without employing a chemical reaction, leads to the longer life cycle. Also, the capacitance is directly related to the surface area of the active carbon, giving the DMG series high capacitance values in a small and low profile design. Measuring only 20.5mm x 18.5mm x 1.4mm, which leads the industry in compact packaging, Murata's EDLC series is designed for extended temperature applications.

The basis behind this new technology is the result of Murata's collaborations with CAP-XX. In order to meet consumer demand for mobile devices with greater efficiency and functionality, Murata strategically acquired leading edge super cap technology from CAP-XX in 2008. Since then, Murata's focus on EDLC research and development, coupled with CAP-XX's expertise, has lead to the maturity of the enhanced EDLC design.

In addition to the product's prolonged lifetime, high capacitance and high temperature range, Murata's DMG series offers high voltage with very low equivalent series resistance (ESR) all within a miniaturized, yet robust package. Available in 2.1V single-cell and 4.2V double-cell options, the 2.1V provides a nominal capacity of 700mF with a profile of only 1.4mm and an ESR at 1kHz 70mW. The 4.2V has a nominal capacity of 350mF at 2.8mm thickness and 130mW ESR at 1kHz.

"The high-reliability provided by Murata's DMG series fills a critical need within the SSD market and in products that promote environmentally sound lifestyles," stated Mark Waugh, business development manager for Murata Electronics North America. "Murata's prolonged life-span energy storage technology is advanced, providing superior quality and performance."

The DMG series, like all of Murata's EDLC's, are fully RoHS-compliant. Sample pricing for the 2.1V is $5 and $9 for the 4.2V. Lead-times range from stock to 8 weeks.

About Murata Americas (www.murataamericas.com)

Murata Americas is the group of Murata companies located in North and South America. The regional HQ of Murata Americas is Murata Electronics North America, Inc., a wholly owned subsidiary of Murata Manufacturing Co., Ltd., whose global headquarters are in Kyoto, Japan. Established in 1944, Murata Manufacturing is a worldwide leader in research, design, manufacture and sale of ceramic based passive electronic components, power supply and wireless module solutions. With annual revenues in excess of $7 billion dollars, Murata is committed to the environmentally conscious development and stable supply of advanced electronic materials, leading edge electronic components, and multi-functional, high-density modules. Products include: monolithic ceramic capacitors, polymer aluminum electrolytic capacitors, electric double layer energy device (EDLC), noise suppression products/EMI suppression filters, inductors, resistor products, resonators, filters, RF components, communication and wireless module solutions, sensors, thermistors, DC-DC converters, AC-DC power supplies, sound components, piezo actuators, micromechatronics products, ceramic applied products, and RFID solutions. Murata's products are found in a wide range of applications including consumer, mobile communications, computers and networking equipment, automotive electronics, advanced metering equipment, digital home electronics, lighting and illumination, and healthcare devices. Murata has employees and manufacturing facilities throughout the world.

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