Toshiba Unveils Compact High-voltage Photorelay For EV Battery Systems
KUALA LUMPUR, Aug 21 (Bernama) -- Toshiba Electronic Devices & Storage Corporation (Toshiba) has launched the "TLX9161T", an automotive photorelay engineered for electric vehicle (EV) battery systems, with volume shipments having begun.
According to Toshiba in a statement, with a minimum output withstand voltage of 1500 volts (V), the new product meets the stringent requirements for high-voltage EV batteries.
The photorelay, built in a compact SO12L-T package, offers a 25 per cent smaller mounting area than its predecessor, the TLX9160T SO16L-T package. The reduced footprint contributes to more compact and cost-efficient battery management systems (BMS), which are crucial for optimising EV battery performance and safety.
Photorelays like this are critical in BMS applications, where they manage isolation between the vehicle body and battery, a key safety feature in high-voltage environments.
By miniaturising the internal MOSFET chip, Toshiba has maintained compatibility with existing circuit board designs while enhancing performance.
The new photorelay uses a resin with a Comparative Tracking Index (CTI) exceeding 600, which is classified under Material Group I of the IEC 60664-1 international standard. It also ensures over five millimetres of creepage distance, aligning with global safety standards for 1000V operations.
Toshiba will continue to expand its lineup of automotive photorelay products and provide solutions that address the challenges in popularising EVs, aiming to contribute to the realisation of a carbon-neutral society.
-- BERNAMA