Product Introduction
Toshiba Electronics Europe GmbH ("Toshiba") announces the TLX9165T, a new photorelay designed for automotive applications. Housed in a 10-pin SO16L-T package, this component achieves an output withstand voltage of at least 1800V. It is specifically developed to support Battery Management Systems (BMS) for 800V high-voltage batteries in electric vehicles (EVs) and Energy Storage Systems (ESS), aiming to extend battery lifespan and optimize performance.
Technical Significance and Application
The increasing adoption of electric vehicles (EVs) is driven by improvements in charging times and extended range, both requiring more efficient battery system utilization. Battery Management Systems (BMS) play a critical role by monitoring battery state and ensuring isolation between the battery and the vehicle chassis, which is paramount for the safe operation of high-voltage batteries. In BMS operating at high voltages, electrically isolated photorelays are essential. Energy Storage Systems (ESS) for renewable energy also utilize comparable BMS architectures.
Photorelay used in these battery systems typically need to withstand voltages approximately double the system voltage. For an 800V system, this necessitates an output withstand voltage exceeding 1600V. The new Toshiba TLX9165T photorelay not only meets but surpasses this requirement, featuring a newly developed high-voltage MOSFET that achieves an output withstand voltage of at least 1800V, making it particularly suitable for 800V systems.
Design and Compatibility
The 10-pin SO16L-T package of the TLX9165T incorporates resin with a Comparative Tracking Index (CTI) of 600 or higher, classifying it under Material Group I according to the international standard IEC 60664-1. Furthermore, the pin configuration ensures a creepage distance of at least 7.5mm on the receiver side, enabling operation at voltages up to 1500V. The pin spacing and arrangement are consistent with existing Toshiba SO16L-T packages, such as the TLX9160T and TLX9152M, allowing for the reuse of existing PCB layouts.
The TLX9165T is configured as a normally open (1-Form-A) switch, featuring an avalanche current (IAV) of 0.6mA and a high isolation voltage of at least 5000 Vrms. It is AEC-Q101 qualified and fully compliant with the international standard IEC 60664-1. Key application areas include automotive systems, specifically BMS for battery voltage monitoring, detection of mechanical relay lock-ins, and ground fault detection. The TLX9165T also serves as a replacement for mechanical relays.
For more information on the TLX9165T photorelay and Toshiba's range of isolators, solid-state relays, and automotive components, please refer to the provided links.
About Toshiba Electronics Europe
Toshiba Electronics Europe GmbH (TEE) offers a wide range of hard disk drives (HDDs) and semiconductor solutions for consumers and businesses across Europe. These solutions cater to applications in Automotive, Industrial, IoT, Motion Control, Telecommunications, Networking, Consumer, and Home Appliance sectors. In addition to HDDs, TEE provides power semiconductors, discrete components, optoelectronics, microcontrollers/MCUs, and application-specific standard products (ASSPs).
TEE also supplies SCiB™ battery cells and modules utilizing Lithium-Titanate-Oxide (LTO) for high-performance applications. Additionally, they offer silicon nitride (SiN) ceramic substrates, valued for their heat dissipation properties and strength, for use in power semiconductor modules, inverters, and converters.
TEE is headquartered in Düsseldorf, Germany, with offices in France, Italy, Spain, Sweden, and the United Kingdom, providing marketing, sales, and logistics services. Further company and product information is available on Toshiba's websites:
Contact Information
Press Contact:
Michelle Shrimpton, Toshiba Electronics Europe GmbH
Tel: +44 (0)7464 493526
E-Mail: MShrimpton@teu.toshiba.de
Issued by:
Birgit Schöniger, Publitek
Tel: +49 (0)172 617 8431
Web: www.publitek.com
E-Mail: birgit.schoeniger@publitek.com
Düsseldorf, Germany, July 2025
