DOWA UV LED 310nm 325nm 340nm
Product Details Description
The xFxVL-1F131 is a DOWA UV LED series designed for professional optical, analytical, and sensing equipment. It provides three wavelength options—310nm, 325nm, and 340nm—so engineers can select the proper ultraviolet band according to the target material, detector response, test method, or instrument design.
This DOWA UV LED uses a TO39 flat can package with a φ9mm TO diameter. Unlike narrow-beam hemispherical lens types, the flat lens design supports a much wider 114° emission angle. This makes the product useful for applications where broader UV exposure is required, such as sample-area illumination, fluorescence excitation zones, compact test chambers, sensor arrays, and optical verification systems.
The 310nm version provides 1.5mW radiant flux at 5V, the 325nm version provides 1.7mW radiant flux at 4.5V, and the 340nm version provides 1.7mW radiant flux at 4V. The operating current is 40mA. These parameters make the series suitable for low-power UV systems that require defined wavelengths and stable component-level performance.
For spectroscopy and fluorescence applications, this DOWA UV LED can work as an excitation source in laboratory instruments, optical test modules, inspection devices, and customized measurement systems. For chemical and biological analysis, the 310nm, 325nm, and 340nm options provide wavelength flexibility for different sample responses. Final performance should be confirmed in the complete system, including the driver circuit, optical filter, working distance, detector sensitivity, heat path, and calibration method.
The wide-angle output makes this model different from narrow 6° or 24° TO-CAN UV LEDs. It is better suited for designs that need broader coverage rather than concentrated spot output. This positioning helps engineers choose the correct DOWA UV LED according to beam angle, package type, and application geometry.
This product should not be described as a consumer black light, LED strip, high-power curing lamp, or finished sterilization product. It is a DOWA UV LED diode for OEM integration. Correct product positioning helps match buyers searching for TO39 UV LED components, wavelength-specific UV sources, and DOWA ultraviolet diode solutions.
For reliable operation, use a suitable current-controlled driver and avoid electrical overstress. UV LED performance can be affected by heat, soldering process, reverse voltage, handling, optical contamination, and system alignment. Testing inside the final product structure is recommended before mass production.
This DOWA UV LED emits ultraviolet radiation. Do not look directly at the operating 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-1F131
Wavelength: 310nm / 325nm / 340nm
TO Type: TO39
Radiant Flux: 1.5mW at 310nm / 1.7mW at 325nm / 1.7mW at 340nm
Voltage: 5V at 310nm / 4.5V at 325nm / 4V at 340nm
Current: 40mA
View Angle: 114°
Lens Type: Flat
TO Diameter: φ9mm
FAQ
What is this DOWA UV LED used for?
This DOWA UV LED 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-1F131 a finished UV lamp?
No. The xFxVL-1F131 is a UV LED diode component, not a finished lamp, strip light, or consumer lighting product. It must be integrated into a properly designed device.
What wavelength options are available?
This DOWA UV LED series includes 310nm, 325nm, and 340nm wavelength options.
What is the radiant flux of each wavelength?
Radiant flux is 1.5mW at 310nm, 1.7mW at 325nm, and 1.7mW 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 TO39 package with a flat lens and φ9mm TO diameter.
What is the view angle?
The view angle is 114°, which makes this DOWA UV LED suitable for wider UV coverage than narrow-beam TO-CAN diode types.
Can it be used for fluorescence excitation?
Yes. The 310nm, 325nm, and 340nm options can be used for fluorescence excitation when the target material and detector system are matched to the selected wavelength.
Can this LED be used for UV curing?
It may be used for selected low-power material response or UV curing tests if the material is sensitive to 310nm, 325nm, or 340nm. It is not a high-power curing lamp.
Can it be used 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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