Advancing Distance Measurement in Modern Applications

13 Oct 2025

Hamamatsu Photonics is pleased to introduce the G15978-0020P, an exciting new InGaAs Avalanche Photodiode that redefines the possibilities in compact sensor technology. Designed specifically for researchers, engineers, and industrial applications, this new photodiode is ideally suited for accurate distance measurement and low-light detection, responding effectively to the evolving needs of the market.

The G15978-0020P features a surface-mount type COB package that measures a remarkably compact 1.6 mm × 0.8 mm × 0.7 mm, making it significantly smaller than its predecessor, the G14858-0020AA metal package type. This miniaturization makes it a valuable component for integration into modern, compact mobile equipment, allowing for advancements in touchless display technology, automatic faucets, and free space communications.

One of the key features of the G15978-0020P is its exceptional performance metrics. It boasts a maximum dark current of just 50 nA, which is critical for low-light applications, and a terminal capacitance of 2.0 pF, reducing noise and enhancing signal clarity. With a peak sensitivity wavelength of 1550 nm and a photosensitivity of 0.8 A/W, it guarantees high responsiveness and accuracy, making it ideal for situations where precise measurement is paramount.

Emphasizing durability, the G15978-0020P is constructed with high-quality materials to withstand the rigors of daily use, ensuring long-term performance for engineers and manufacturers. Additionally, it aligns with sustainable manufacturing practices, as it is compatible with lead-free reflow soldering techniques and avoids the use of harmful materials, satisfying RoHS directives and aiding companies in meeting their environmental obligations.

Luigi Ghezzi, Technical Marketing Engineer at Hamamatsu Photonics in Europe, expressed excitement about the sensor’s release, "The introduction of the G15978-0020P reflects our commitment to innovation and quality, addressing the growing industry's demand for miniaturized components essential for precise mobile applications."

The launch of the G15978-0020P marks a significant milestone in photodiode technology, and it is available for order now. Whether you're working on next-generation consumer gadgets or industrial equipment, the G15978-0020P is your ideal choice for advanced sensor solutions. For detailed technical specifications and to explore how the G15978-0020P can enhance your industrial automation, free space communications, or touchless, remote designs, visit the InGaAs APD G15978-0020P product page today!