MALVERN, PA — Vishay Intertechnology Inc. (NYSE: VSH) has introduced four automotive-grade optical sensors designed to improve data transmission between battery cells and electronic control systems, expanding its semiconductor portfolio for electric vehicles, energy storage and industrial automation.
The Malvern-based electronics manufacturer said the devices support transmission speeds of up to 6 megabits per second, providing an alternative to radio-frequency communication in environments where electromagnetic interference can disrupt electronic systems.
The new Vishay Semiconductors products — VCND2040X02, VCND2040SLX02, VCND2045X02 and VCND2045SLX02 — combine an infrared emitter and a PIN photodiode in compact surface-mount packages measuring 4.4 millimeters by 2.25 millimeters by 1.9 millimeters.
All four sensors meet the AEC-Q102 automotive qualification standard, making them suitable for applications requiring components tested against automotive operating requirements.
In battery management systems, the sensors are designed to support communication between individual cells and system nodes, including functions used to monitor battery conditions and balance cells.
Unlike radio-frequency links, optical communication does not rely on electromagnetic radio signals, reducing exposure to electromagnetic compatibility and interference problems. Vishay also identifies improved resistance to certain cyberattack risks as a potential advantage.
The devices support simultaneous bidirectional data transmission, allowing information to move in both directions across an optical connection.
Two models, the VCND2040X02 and VCND2040SLX02, use single-stack infrared emitters with typical rise and fall times of 18 nanoseconds.
The VCND2045X02 and VCND2045SLX02 use double-stack emitters and achieve typical rise and fall times of 9 nanoseconds, supporting faster signal transitions.
Each sensor incorporates separate lenses for its infrared emitter and photodiode, along with a barrier intended to reduce optical interference between the components.
The devices can transmit data through open air over short distances. External optical components, including fiber-optic connections, can extend communication across several meters and accommodate routing through confined spaces or around bends.
Vishay designed the sensors with wettable-flank lead frames that permit either side-view or top-view mounting, giving equipment manufacturers additional flexibility when arranging components on printed circuit boards.
Beyond battery management, the company is targeting energy storage equipment, industrial automation systems, optical switching, optical encoders and position-sensing applications.
The sensors are RoHS compliant, halogen-free and classified at Moisture Sensitivity Level 3.
The product introduction extends Vishay’s optical communications offerings into applications where equipment manufacturers require compact, contactless data links capable of operating in electrically demanding environments.
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