Murata to start mass production of 200 Watt non-isolated DC-DC converter for Terra Motor's new A4000i electric scooter

Murata to start mass production of 200 Watt non-isolated DC-DC converter for Terra Motor's new A4000i electric scooter


Murata Manufacturing Co., Ltd.

President/Statutory Representative Director: Tsuneo Murata

Murata Manufacturing Co., Ltd. will start mass production of non-isolated DC-DC converters*1 for electric scooters. The converter has been adopted by Tokyo-based Terra Motors Co., Ltd. (President and CEO: Toru Tokushige) for use in its new electric scooter.

As it looks to emerging markets as part of its medium-term management plan*2, Murata is committed to strengthening its marketing to better understand local needs, and to delivering new products and solutions to meet the features required by its customers.

While scooters are now widely used for daily transportation in emerging countries, they face problems such as high gasoline prices and environmental pollution caused by exhaust. As a result, electric scooters are expected to grow in popularity in coming years. In this context, Murata has developed a non-isolated DC-DC converter for the new A4000i electric scooter from Terra Motors, a venture company engaged in the manufacture and sale of electric scooters. This component will enable power from the scooter's battery to be used for auxiliary equipment such as headlights by stepping it down from 48V to 12V. In the future, Murata plans to expand its lineup beyond electric scooters to three- and four-wheeled compact electric vehicles.

Developed using the reliability-centered design techniques that Murata has cultivated for the automotive industry over the years, this DC-DC converter is sturdy enough to be used with confidence on the rugged roads in emerging countries. Murata was also able to engineer the converter to be highly efficient and compact thanks to its simple non-isolated design. It also features a 5V output that can handle a USB power supply and similar extras, all from a single small package.

Murata will be exhibiting this innovative chip ferrite beads at their booth in "CEATEC JAPAN 2013", which will be held from October 1.

Yasuyuki Morishima, Director of Power Device Products Division

Yasuyuki Morishima, Director of Power Device Products Division, Murata comments, "We are very pleased to have our converter adopted by Terra Motores based on its reliability, small size, and high efficiency. In coming years, we will continue to develop power modules for automobiles as well as two- and three-wheeled vehicles, as we further expand beyond our core markets into emerging markets in order to meet the needs of a wider range of customers."


Electric scooters, as well as three- and four-wheeled compact electric vehicles.


*1 DC-DC converter: A component for converting the DC voltage input into the voltage required to supply power for the operation of semiconductor chips and other electronic components used in electronic devices.
*2 Medium-term management plan: A three-year plan for fiscal years 2013 through 2015 that focuses on core markets, new applications, and emerging markets as the pillars of business operation. The core markets are mainly in mobile communication devices such as cellphones, smartphones, and tablets, where there is strong demand for components such as laminated ceramic condensers, SAW filters, and communication modules. With respect to new applications, the three major areas where Murata is promoting its technologies, products, and solutions are the automobile, healthcare, and environment/energy sectors.

Part number


Electric characteristics

Item Symbol Characteristics
Input Voltage Vin 48V typ.
Output Voltage Vout1 12.0V±5%
Vout2 5.0V±5%
Output Current lout1
10A (Cont.)
18A (Peak)
lout2 1A (Cont.)
Efficiency Eff 95%

External Size

External Size


Mass production is scheduled to begin in February 2014 at Wakura Murata Manufacturing Co., Ltd.
Expansion of production to factories outside of Japan is also being considered.

About Terra Motors Co, Ltd.

Corporate Profile

Company Name: Terra Motors Co., Ltd.
Established: April 2010
Location: Saito Building III 5F, 34-5 Udagawa-cho, Shibuya-ku, Tokyo, Japan
Capitalization: 662.1 million yen
Business: Development, design, and sales of electric scooters, tricycles, and mobility vehicles for seniors

About the new A4000i electric scooter

The A4000i is the world's first mass-produced electric scooter with a smartphone connection.
The A4000i, a model that reflects the fastidious focus on quality associated with Japanese brands, is being introduced first to consumers in Southeast Asia and Japan.

Murata in Brief

Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world. For more information, visit Murata's website at