uvb led diode DOWA 310nm 325nm 340nm TO18
Product Details Description
The xFxVL-1F111 is a DOWA uvb led diode series designed for professional optical, analytical, and sensing applications. It offers 310nm, 325nm, and 340nm wavelength options, allowing engineers to choose a UV band according to the target material, detector response, test method, or instrument structure.
This uvb led diode uses a TO18 flat can package with a φ5mm TO diameter. Compared with narrow-beam hemispherical lens types, the flat lens supports a wide 113° emission angle. This makes the product useful for applications that require broader UV coverage across a small sample area, optical chamber, sensor surface, or test zone.
The 310nm version provides 1.2mW radiant flux at 5V, the 325nm version provides 1.2mW radiant flux at 4.5V, and the 340nm version provides 1.3mW radiant flux at 4V. All versions operate at 40mA. These specifications make the series suitable for compact UV systems that require defined wavelengths, stable low-current operation, and repeatable component-level performance.
For spectroscopy and fluorescence applications, this DOWA UVB LED diode can work as an excitation source in laboratory instruments, optical test modules, inspection devices, and measurement systems. For chemical and biological analysis, the 310nm, 325nm, and 340nm wavelength options provide flexibility for different sample responses and testing requirements. Final performance should be verified in the complete system, including driver current, optical filters, working distance, detector sensitivity, thermal path, and calibration method.
This uvb led diode is best positioned as an OEM ultraviolet component, not as a consumer black light, LED strip, high-power curing lamp, or finished disinfection product. Clear positioning helps engineers and purchasing teams understand that the product is intended for wavelength-specific UV output in custom optical assemblies and instrument designs.
The wide 113° output makes this model useful when designers need broad local exposure rather than a focused UV spot. It can be used in sample-area illumination, multi-sensor layouts, compact testing fixtures, fluorescence comparison tools, and small UV response chambers.
For reliable operation, use a suitable current-controlled driver and avoid electrical overstress. UV LED performance can be affected by heat, soldering conditions, reverse voltage, handling, optical contamination, and installation alignment. Testing inside the final product structure is recommended before mass production.
This DOWA uvb led diode emits ultraviolet radiation. Do not look directly at the working diode, and do not expose skin or eyes to UV light. Use protective eyewear, shielding, warning labels, and controlled procedures during testing, assembly, and operation.
Specifications
Brand: DOWA
Model NO.: xFxVL-1F111
Wavelength: 310nm / 325nm / 340nm
TO Type: TO18
Radiant Flux: 1.2mW at 310nm / 1.2mW at 325nm / 1.3mW at 340nm
Voltage: 5V at 310nm / 4.5V at 325nm / 4V at 340nm
Current: 40mA
View Angle: 113°
Lens Type: Flat
TO Diameter: φ5mm
FAQ
What is this uvb led diode used for?
This uvb led diode is used as a compact ultraviolet light source for spectroscopy, fluorescence excitation, optical sensing, chemical analysis, biological analysis, material testing, inspection instruments, and OEM optical modules.
Is xFxVL-1F111 a DOWA UV LED diode?
Yes. The xFxVL-1F111 is a DOWA UV LED diode series using a TO18 flat can package.
What wavelength options are available?
This series includes 310nm, 325nm, and 340nm wavelength options.
Which wavelength is UVB?
310nm falls within the UVB range. The 325nm and 340nm versions are longer-wavelength ultraviolet options often used for different optical and analytical responses.
What is the radiant flux of each wavelength?
Radiant flux is 1.2mW at 310nm, 1.2mW at 325nm, and 1.3mW at 340nm.
What voltage does each wavelength use?
The voltage is 5V at 310nm, 4.5V at 325nm, and 4V at 340nm.
What is the operating current?
The operating current is 40mA.
What package does this product use?
It uses a TO18 package with a flat lens and φ5mm TO diameter.
What is the view angle?
The view angle is 113°, which supports wider UV distribution than narrow-beam UV LED diode types.
Can this UVB LED diode be used for UV curing?
It may be used for selected low-power material response or UV curing tests if the material responds to 310nm, 325nm, or 340nm. It is not a high-power curing lamp.
Can it be used for phototherapy device development?
310nm UVB may be considered in phototherapy-related equipment development, but medical devices require strict optical, electrical, safety, and regulatory validation before use.
Is this suitable for disinfection?
This product should not be promoted as a disinfection light source. It is better positioned for spectroscopy, sensing, fluorescence excitation, and analytical equipment.
Is it safe to view directly?
No. Do not look directly at the working UV LED or expose skin and eyes to UV radiation. Use protective eyewear, shielding, warning labels, and safe test procedures.
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