Silanna UV's New Package Unlocks Precision Sensing in Critical Applications

BRISBANE, Australia – April 14, 2026 – Australian semiconductor innovator Silanna UV today announced a significant advancement in ultraviolet sensing technology with the launch of a new TO-39 flat window package for its high-performance Far-UVC and Deep-UVC LEDs. The development promises to grant engineers unprecedented design flexibility, enabling a new generation of compact, high-precision devices for environmental monitoring, medical diagnostics, and analytical science.

The new package is available for the company’s SF1 series, which operates at a peak wavelength of 235 nanometers (nm), and its SN3 series, which peaks at 255 nm. By expanding its metal-can portfolio, the Brisbane-based manufacturer is directly addressing the growing demand for more sophisticated and reliable sensing solutions in a market projected to grow at over 30% annually, potentially reaching $13.5 billion by 2034.

The Precision Edge in a Compact Form

The core innovation of the new TO-39 package lies in its optically flat window. Unlike traditional domed or lensed packages that offer a fixed beam angle, this design allows engineers to integrate their own custom secondary optics, such as external lenses or specialized light guides. This seemingly simple change is a game-changer for high-performance applications where precise control over the light path is paramount.

For designers of analytical instruments, this means they can precisely shape and direct the UV beam to optimize performance within a specific flow chamber or sample area. This capability is critical for maximizing signal-to-noise ratios in applications like water quality monitoring or high-performance liquid chromatography (HPLC), where accuracy is non-negotiable.

Furthermore, the package features a low-profile flat lid, which significantly improves space efficiency. This focus on compact integration is a direct response to the industry-wide trend of miniaturization. The reduced footprint supports the development of smaller, more portable systems, from handheld medical sterilization devices to field-deployable water quality sensors that can deliver lab-grade results on-site.

Built on Silanna UV’s patented nitride semiconductor technology, the hermetically sealed metal-can package also provides robust environmental protection and thermal stability, ensuring long operational lifetimes even in harsh and challenging conditions. Integrated electrostatic discharge (ESD) protection further enhances the durability of these components.

Revolutionizing Environmental and Health Monitoring

This product launch moves the narrative for UV-C LEDs far beyond their well-known role in disinfection. While still a powerhouse for sterilization, Silanna UV is positioning its technology at the forefront of advanced analytical sensing, where specific wavelengths are used to detect and quantify particular chemical compounds.

The SF1 series, operating in the Far-UVC range at 235 nm, unlocks new sensing capabilities at shorter wavelengths. Its primary application is the accurate detection of nitrate (NO₃) and nitrite (NO₂) in water—a critical task given the widespread environmental challenge of nitrate pollution from agricultural runoff. The SF1 series is also capable of detecting carbon dioxide (CO₂) in gas-analysis applications, opening doors for new monitoring technologies.

Meanwhile, the SN3 series, with its powerful Deep-UVC output at 255 nm, is highly effective for measuring key water quality indicators like Chemical Oxygen Demand (COD) and Total Organic Carbon (TOC). These measurements are essential for wastewater treatment facilities and industries that must monitor their environmental impact. The 255 nm wavelength is also ideal for detecting ozone in gas-sensing applications.

Crucially, both series offer a sustainable and more robust alternative to traditional mercury-vapor UV lamps. With the Minamata Convention on Mercury mandating the phase-out of many mercury-containing products, the demand for high-performance, mercury-free solid-state solutions like these UV-C LEDs is accelerating. Their compact size, instant-on capability, and superior durability make them a clear successor to legacy lamp technology.

The Strategic Race for Shorter Wavelengths

The introduction of this specialized package is a strategic move in the highly competitive global UV-C LED market. While many manufacturers focus on the 265-280 nm range primarily used for disinfection, Silanna UV has carved out a leadership position in the more technologically demanding shorter wavelengths. Achieving high optical power and long lifetimes below 260 nm is notoriously difficult with conventional Aluminum Gallium Nitride (AlGaN) semiconductor alloys.

Silanna UV’s key advantage is its proprietary Short Period Superlattice (SPSL) technology. This patented approach overcomes the material science and electrical performance limitations of traditional AlGaN, enabling the company to create a unique nanostructure that maintains high efficiency and power at wavelengths like 235 nm. This technological edge allows the company to target high-value niche applications that other suppliers cannot easily address.

By focusing on the needs of the analytical and instrumentation markets, the company is positioning itself not just as a component supplier but as an enabling partner for innovation. The new TO-39 package is a clear signal of this strategy, providing the flexibility that product developers need to push the boundaries of what is possible in their respective fields.

As industries from environmental science to medical diagnostics demand more portable, reliable, and precise tools, the underlying components must evolve. By providing the essential building blocks for more intelligent and compact systems, this advancement paves the way for a new generation of devices capable of addressing some of the world's most critical environmental and health challenges.