November 13, 2025, Malvern, Pennsylvania, and Shanghai, China — Vishay Intertechnology, Inc. (NYSE: VSH) today announced the expansion of its optoelectronics portfolio with the new VEMD8083, a high-speed silicon PIN photodiode designed for enhanced sensitivity to visible and infrared light. Housed in a compact 3.2 mm x 2.0 mm x 0.6 mm top-view surface-mount package, the Vishay Semiconductors VEMD8083 offers high reverse photocurrent and fast response, improving performance in biomedical applications such as heart rate monitoring and blood oxygen detection.

The newly released device features a smaller form factor than previous-generation solutions, enabling integration into miniaturized optoelectronic wearables like smart rings and consumer health monitoring equipment. Despite its small chip size, package optimization allows the photodiode to support a large radiant sensitive area of 2.8 mm², achieving a reverse photocurrent of 11 µA at 525 nm, 14 µA at 660 nm, and 16 µA at 940 nm.

The high sensitivity of the VEMD8083 is particularly valuable for biomedical applications, including photoplethysmography (PPG), which detects changes in blood volume and flow by measuring light absorbed or reflected by blood vessels. In these applications, precise measurement is crucial for diagnosing and monitoring conditions such as cardiovascular disease.

The device is pin-to-pin compatible with bright crystal solutions and covers a sensitive range from 350 nm to 1100 nm for visible and near-infrared light. With a fast rise/fall time of 30 ns and a diode capacitance of 50 pF, the VEMD8083 meets the requirements for high sampling rates. The photodiode features a semi-sensitive angle of ±60° and an operating temperature range from -40 °C to +85 °C.