OMRON reveals ultra-compact power relay for high-voltage battery safety

OMRON Electronic Components Europe has introduced the G9EJH-1-E ultra-compact DC power relay, delivering a space-saving solution for inrush protection in battery-charging systems up to 800V. With class-leading dimensions of 31mm x 27mm, and 30mm high, the relay also meets the IEC 60664 insulation distance specification to satisfy stringent reliability and safety standards.

With its high maximum voltage and industry-standard insulation distance, the G9EJH-1-E is well suited to use in battery energy-storage systems (ESS). The compact dimensions, as well as 12V coil-operating voltage, simplify integration in pre-charging, auxiliary power, and main charging systems in hybrid and electric vehicles (EV/PHEV). Also, its 800V capability meets the needs of the automotive market as typical vehicle battery voltages continue to rise, targeting greater efficiency and faster charging.

With SPST (single-pole single-throw) normally open contacts, the relay operates in series with a current-limiting resistor for inrush protection. Capable of carrying a sustained current of 15A, and handling inrush current up to 30A, the G9EJH-1-E operates and releases within 30ms to provide fast-acting protection.

The contact resistance is less than 100mΩ, ensuring minimal power loss when turned on. On the other hand, the insulation resistance of 1000MΩ and dielectric strength of 2500V between the coil and contacts ensures robust performance in harsh conditions. Housed in a 6-pin PCB-mount package, the G9EJH-1-E is suitable for automated or hand soldering and ensures flexibility for assemblers while simplifying field repairs. With mechanical lifetime rated for over 200,000 operations, and specified for operating temperature from -40°C to 85°C, the G9EJH-1-E ensures outstanding reliability in automotive and industrial environments. The relays are ready now for use in on-board chargers (OBC), service equipment (EVSE), and grid-connected energy-storage (BESS) applications.

For further information visit: https://components.omron.com/eu-en/products/relays/G9EJH-1-E

About OMRON Electronic Components Europe

On 1 April 2022, OMRON Corporation announced that its’ Electromechanical Components (EMC) division was renamed as OMRON Device and Module Solutions (DMS) in line with the global long-term vision ″Shaping the Future 2030.”

OMRON Electronic Components Europe is the European subsidiary of the Device and Module Solutions division. The revised division name reflects a new focus on delivering solutions to customers globally and in Europe. Society is facing new social and environmental changes, and OMRON recognises and is responding to that. The company aims to offer its’ customers solutions that help them address these universal challenges. In accordance with the long-term strategy, OMRON intends to contribute further to the roll-out of new energy sources and of high-speed communications by enabling the creation of sturdier, advanced and more efficient devices. These devices will make people’s lives easier and better, in particular by achieving carbon neutrality, realizing a digital society and extending healthy life expectancy.

OMRON Electronic Components Europe strongly supports its customers in Western and Eastern Europe through 8 regional offices, a network of local offices and partnerships with specialist, local, regional and global distributors.