Diamond Electric was founded in 1937 and has its corporate office located in Eleanor, West Virginia. It aims at delivering innovative, high-quality ignition systems and electronic components that power the future of mobility and energy. Diamond Electric provides reliable solutions for automotive, EV, and electronic applications to ensure performance, safety, and trust for global partners and customers through advanced engineering, precision manufacturing, and a commitment to sustainability. The company embodies values such as customer focus, societal contribution, integrity, teamwork, and transparent communications.
Diamond Electric is a global leader in the design and manufacturing of ignition coils for a wide range of vehicles. These coils are critical components that transform low-voltage power from a vehicle’s battery into the high-voltage energy needed to ignite the air-fuel mixture in the engine cylinders. Diamond Electric provides advanced components for hybrid and electric vehicles, supporting the transition to electrified mobility. These products are engineered for high efficiency, lightweight design, and superior thermal performance. It manufactures high-quality printed circuit boards that serve as the backbone for various electronic systems. These PCBs are designed for reliability and long operational life. Diamond Electric also manufactures transformers and wire coil products that are crucial in managing electrical energy across various applications, ensuring consistent power delivery and system safety.
Diamond Electric collaborates closely with many prestigious automotive OEMs, which reinforces its credibility and reputation. Its partners include Ford, Stellantis, Subaru, Toyota, General Motors, Polaris, Aston Martin, Honda, Mitsubishi, Daihatsu, Suzuki, BRP, Volvo, SAIC, and Renault. These partnerships highlight Diamond Electric’s global reach and its ability to cater to a broad spectrum of vehicle manufacturers in both OEM and aftermarket capacities.
Key products
On-Board Charger
Diamond Electric’s On-Board Charger (OBC) portfolio is designed to meet the increasing demand for efficient and reliable charging solutions in electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs). These systems play a critical role in managing the conversion of AC power from the grid into DC power suitable for charging high-voltage vehicle batteries, ensuring fast, safe, and efficient energy transfer. Diamond Electric OBCs utilize advanced power electronics and high-frequency transformer technology to provide compact, lightweight charging solutions with maximum efficiency.
The OBC portfolio is engineered to support a wide range of battery voltages, making them suitable for various EV architectures, including passenger cars, light trucks, and hybrid vehicles. They feature multi-level safety mechanisms, including overvoltage, overcurrent, and thermal protection. These measures ensure reliable performance and protect both the charger and the vehicle battery during operation. Diamond Electric designs OBC units to integrate seamlessly with battery management systems (BMS) and vehicle power distribution networks, ensuring smooth communication and optimized charging cycles. By leveraging advanced magnetic design and high-frequency transformers, Diamond Electric achieves a compact footprint, reducing the overall weight and improving energy efficiency for EVs.
Transformer and Wire Coil Solutions
Diamond Electric designs high-frequency transformers and reactors that support on-board chargers, DC-DC converters, and inverter systems, ensuring optimal energy management. They deliver enhanced power density for compact designs while reducing thermal loss for higher efficiency. Diamond Electric also offers customizable designs to meet OEM requirements.
Diamond Electric provides coil and magnetic components critical to inverter systems for EV traction motors. These components ensure efficient energy transfer and support high-frequency switching in modern drive systems. Diamond Electric DC-DC converters manage voltage transformation between high-voltage EV batteries and low-voltage auxiliary systems (12V or 48V), ensuring stable power distribution across the vehicle.
Diamond Electric has stood at the forefront of innovation in automotive electrical systems and power electronics, driving progress from traditional ignition technologies to advanced EV charging and energy management solutions. With a deep commitment to quality, precision, and sustainability, Diamond Electric plays a pivotal role in shaping the future of mobility and electrification. By delivering high-performance ignition systems, power electronics, transformers, coils, and on-board charging solutions, the company empowers leading global automakers and industries to achieve cleaner, more efficient, and more reliable energy systems.
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