The broadest line of both silicon and InGaAs detectors commercially available.
Indium Gallium Arsenide (InGaAs) PIN photodiodes are made using InGaAs/InP technology.
Cutting-edge silicon photodetectors that excel in precise detection of light ranging in wavelength from 250nm to 1100nm
Monolithic “quads” or quadrant photodiodes (QPDs) are 2 X 2 photodiode arrays with four planar diffused photodiode elements or segments.
Marktech offers a broad line of silicon photo Transistors in a variety of package types ranging from miniature metal can to ceramic packages.
Our High-Reliability Photoreflectors are sensors that contain both the LED emitter and photodetector functions within a single package.
Marktech Si APD’s offer low-level light and short pulse detections of wavelengths between 400 nm and 1100 nm.
UV detectors are offered in a variety of TO metal-can type packages from TO-18 to TO-39 with special UV glass lens to insure optimum lifetime and the least amount of material degradation
With the ability to detect light in the UV, visible, and infrared spectrums, photo detectors, photo transistors, and photodiodes are being used in increasingly more applications.
Marktech offers the broadest range of emitters commercially available ranging from 235nm to 4300nm across the UV, visible, NIR, SWIR, and MWIR spectral ranges.
Marktech offers the broadest range of UV LEDs commercially available ranging from 235nm to 400nm including UVA, UVB, UVC, and deep UVC LEDs.
Our advanced line of visible LED products is engineered to deliver high-quality, energy-efficient lighting solutions across various applications from 400nm to 700nm..
Our NIR LED wavelength range is typically from 700nm to 1000nm, extending into wavelengths invisible to the human eye but crucial for numerous technological and scientific applications.
Our standard product offering includes wavelengths from 1020nm to 4300nm and operating currents ranging from 20mA to 350mA for high-power applications.
Our Point Source LEDs are specifically engineered for optical encoders, edge sensors, and other critical applications that demand highly focused light with minimal dispersion.
Multi-LED chips in a single package, our multiple wavelength LEDs are engineered to address a myriad of applications across the UV, visible, NIR, SWIR, and MWIR spectral ranges
Designed to produce a highly defined red dot or reticle, facilitating accurate aiming without revealing the location to the target.
Ideally suited for applications including edge sensing, line sensing, coin bill validation, and bar code reading
Our panels are crafted to deliver uniform, vibrant illumination across a wide range of applications, from consumer electronics to industrial displays.
Crafted with the latest LED technology, these rings provide adjustable illumination to meet specific needs, ensuring optimal visibility and enhancing the quality of your projects.
As a proud CREE LED Solution Provider for over a decade, Marktech offers comprehensive engineering support, including design, binning, and material selection, alongside custom packaging options for specialized applications.
CREE LED through-hole emitters, designed for high-temperature and moisture environments with UV-resistant optical-grade epoxy, offer a range of colors for versatile applications in signage and lighting.
CREE High Brightness (HB) SMD LEDs are the brightest, most reliable architectural, video, signage, scoreboard, roadway, and specialty LEDs available today.
CREE LED’s P4 series represents a leap in LED design, combining efficiency with aesthetic versatility to meet the demands of modern lighting applications.
Marktech’s CREE LED XLamp® offerings on aluminum core starboards simplify LED integration for designers, providing a range of colors and angles on compact boards for easy testing and implementation in varied lighting applications.
Marktech Optoelectronics introduces its new product line of CREE LED die, including the EZ1350 Series Die, packaged in TO-cans (TO-18 and TO-39 outlines) designed for precision and reliability in demanding applications with protection against environmental factors like moisture and dust.
CREE LED’s Versatile InGaN-based LED chips are designed to meet diverse needs for blue, green, and white-converted LEDs.
Marktech Optoelectronics combines over 40 years of expertise in optoelectronics with a focus on customized engineering solutions, addressing specific customer needs and applications.
Custom photodiode detectors are designed to meet unique customer requirements, offering specialized performance features and cost savings through optimizations such as integrated filters, photodiode arrays, and hybridization.
Through our vertically integrated manufacturing facilities in California and Japan, we offer custom LED solutions, including packaging and optoelectrical categorization, enhancing product design and market readiness.
Multiple LED dies combined in a single package are engineered to address various applications across the UV, visible, NIR, SWIR, and MWIR spectral ranges.
To succeed, you need the exact optoelectronic package custom-designed and manufactured for your application, including hermetic metal SMD, TO-can, plastic SMD, and molded through-hole packaging.
Made-to-order semiconductor chips (die) and wafers are designed and fabricated to fit your needs. Standard dies are available in specific wavelengths for high-volume production applications.
Bare and encapsulated LEDs, photodiodes, and other components are assembled on FR4, metal-cored, and flexible circuit boards, ready for production.
Learn about the latest trends, devices, and potential applications.
The latest news and announcements from Marktech Optoelectronics.
Detailed information about common uses for Marktech Optoelectronics devices.
In depth discussions on LEDs, Detectors and the science behind them.
Become familiar with common terminology and concepts for LED Devices.
List of common concepts and definitions for Photodiodes.
Latham, NY — December 17, 2025 – Marktech Optoelectronics (“Marktech”), a leader in advanced UV LED and ultraviolet LED emitter technologies, today announced an expanded portfolio of high-power UV LED light sources with new UV emitters spanning 230nm to 340nm. These devices strengthen Marktech’s offerings across the ultraviolet light spectrum—from deep-UV LED (DUV LED, far UVC LED) sterilization wavelengths to longer UVB and UVA wavelengths for curing, phototherapy, and forensics.

These next-generation emitters meet the growing demand for UV sanitizing light, germicidal UV light (UVGI light), UV curing light, LED light curing, deep UV sterilization, phototherapy (psoriasis, eczema, vitiligo, and acne treatment), PUVA therapy (enhanced UVA phototherapy using psoralens light-sensitizing compound), fluorescence excitation, spectroscopy, 3D-printing resins, water quality monitoring, medical UV light, UV water disinfection, and precision sensing applications.
The updated UV product family adds new deep UV (230nm and 265nm), UVB (310nm), and UVA (340nm) parts while maintaining Marktech’s hallmark of reliability and precision. Each device is engineered for high output and narrow spectral bandwidths. Custom multi-chip configurations, matched emitter‑- detector pairs, and starboard versions are available.
High-Power 280nm LEDs, available in single- and four-chip versions, in SMD and SMD-scaled chip-on-substrate (COS) formats, will follow in early 2026. Marktech and our partners continue to innovate and expand our UV LED offerings into the far-UVC spectral range for sensing, chemical analysis, and ultraviolet germicidal irradiation (UVGI) applications.
The updated product family includes UV LED chips or UV LED dies in a variety of packages:
Note: Note all wavelengths are available off-the-shelf in all package types, but custom packages can be developed to meet your OEM design needs.
The range of wavelengths in Marktech’s expanded UV LED lineup now includes:
405nm (near UV), 400nm, 395nm, 385nm, 375nm, 370nm, 365nm, 355nm, 340nm, 325nm, 310nm, 295nm, 285nm, 275nm, 265nm, 235nm, 255nm
Examples of Marktech UV LEDs in the UVC and UVB spectral ranges.
Parameter | Primary UV Peak (nm) | Measurement Type | Notes |
Organic Matter / DOM | 254 nm (255nm) | Surrogate | Aromatic organics |
COD (UV method) | 254 nm (255nm) | Correlative | Site-specific calibration |
BOD (UV proxy) | 254 / 280 nm | Model-based | Not direct |
TOC / % Organic | 205–215 / 254 nm or 220nm+235nm+255nm | Correlative | Needs calibration |
Nitrate (NO₃⁻) | 220nm+254nm, | Direct Absorbance | 255nm, 280nm for organic correction |
Part Number | Peak λ (nm) | Angle | Power (nW) | Datasheet | Buy Now | Buy Now |
Digi‑Key | Mouser | |||||
MTE2550KC9‑UV | 255nm | 10 | 0.8 | |||
MTE2550KCL9‑UV | 255nm | 115 | 1.8 | |||
MTE2650KC9‑UV | 265nm | 10 | 1.2 | |||
MTE2650KCL9‑UV | 265nm | 115 | 1.9 | |||
MTSM310UV‑F1120 | 310 nm | 120 | 1.2 | |||
MTSM310UV‑F1120S | 310nm (Starboard) | 120 | 1.2 | |||
MTSM340UV‑F3120 | 340 nm | 120 | 90 | |||
MTSM340UV‑F3120S | 340nm (Starboard) | 120 | 90 | |||
MTSM340UV‑D3065 | 340 nm | 70 | 85 | |||
MTSM340UV‑D3065S | 340nm (Starboard) | 70 | 85 | |||
MTSM340UV‑D3035 | 340 nm | 35 | 80 | |||
MTSM340UV‑D3035S | 340nm (Starboard) | 35 | 80 |
Note: For starboard (“S”) versions, the electrical and optical characteristics are identical to their base part numbers. The star‑board option provides UV LEDs pre-mounted on a metal-cored PCB for faster evaluation and easier integration into prototype designs. This eliminates the need for a design engineer or electronics designer to develop and build a custom circuit board.
Marktech’s new emitters combine advanced semiconductor materials with optimized thermal paths and durable package designs. In the deep‑UV MTE2550/MTE2650 series, peak wavelengths of 255 nm and 265 nm are achieved with narrow spectral bandwidths and sealed metal‑can packages. The MTSM310UV series features a ceramic surface-mount design with low thermal resistance and a peak emission at 310 nm, making it suitable for biochemical sensing and phototherapy applications. The MTSM340UV family delivers higher radiant flux at 340 nm in compact 3.5 × 3.5 mm SMD packages and is available in both base and star‑board formats.
All devices are rated for high reliability and extended lifetime under continuous drive. Custom wavelength selections, multi-chip arrays, and emitter–detector matched pairs are available on request.
Using UVC as a “cure-all sanitizer” without accounting for efficacy, safety standards, exposure limits, regulatory constraints, and proper engineering controls is risky. Any UVC‑based product, whether for air disinfection, surface sterilization, water purification, medical device sanitization, or OEM integration, must therefore be carefully specified, tested and labelled to ensure both efficacy and compliance with safety standards.
Read our tech brief on UVC Safety and Compliance for OEMs here:
https://marktechopto.com/uvc-safety-and-compliance-for-oems/
Our UV LEDs are available now through Marktech and its authorized distributors. Samples and production quantities can be ordered immediately via DigiKey or Mouser using the links in the table above. High-power 235nm, 255nm, and 280 nm UVC LED devices are under development and will be released in 2026 to expand Marktech’s germicidal UVC lineup.
For technical support, custom packages, and Silicon photodiode or SiC UV detector pairings, please contact:
Marktech’s global network of distribution partners also supports application engineering, ordering and logistical needs in North America, Europe, and Asia.
Visit Our Booth at Photonics West 2026 to Learn More About Our Photonics Silicon Photodiode Manufacturing Capabilities
Plan now to visit our booth (#259) at SPIE Photonics West, 17 – 22 January 2026 in San Francisco, California to help us celebrate 40 years of photonics innovation.
SPIE Photonics West is the optics and photonics industry’s flagship exhibition to meet the sector’s biggest names and learn about the latest innovations.
Learn more: https://spie.org/PW
See our PW26 company listing: (https://spie.org/ExhibitorDetail?ExpoID=5022&ExhibitorID=104424)
Founded in 1985, Marktech Optoelectronics, Inc. (www.marktechopto.com) (Marktech) is a privately held joint venture of Optrans Corporation and Marktech International. Marktech is a top designer, low-volume packager, and fabless manufacturer of silicon photodiodes, as well as a value-added distributor of custom optoelectronics, including UV, visible, near-infrared (NIR), and short-wavelength infrared (SWIR) emitters, MWIR LEDs, detectors, InP epi wafers, and other compound semiconductors. Headquartered in Latham, NY, Marktech operates extensive optical and electrical testing laboratories for full characterization of detectors and emitters and pioneered tight sorting for LED peak wavelength and output power—still essential for many medical diagnostic applications.
https://marktechopto.com/
Optrans Corp. (optrans.com/) (Optrans), is a private, leading manufacturer of optoelectronic components, delivering high-performance solutions across the UV, visible, and infrared spectra. With fully integrated in-house manufacturing – from epiwafer growth to die fabrication to optical design, assembly, and advanced packaging – Optrans ensures precision, quality, and flexibility. The Optrans product lineup includes UV, visible, and IR LEDs (NIR, SWIR, MWIR), point-source LEDs, photodiodes, photo-reflectors, and phototransistors, all engineered for demanding applications that require spectral accuracy, thermal management, and long-term reliability. Headquartered in Kawasaki City, Optrans collaborates closely with manufacturing companies in Japan, Asia, Europe, and the United States and excels at providing consistent support from component development through module implementation and system integration.
https://optrans.com/
Media Contact:
Gary J. Kardys
Chief Marketing Officer (CMO)
[email protected]