325nm uv led DOWA TO18 310nm 340nm
Product Details Description
The xFxVL-1H411 series is a DOWA UV LED diode designed for engineers who need compact ultraviolet light sources in a TO18 package. The product series includes 310nm, 325nm, and 340nm wavelength options, allowing equipment manufacturers to select different UV bands according to the target optical, sensing, or analytical application.
The 325nm uv led version is especially suitable for applications that require a deep ultraviolet / near-UVA light source in a small metal can package. It offers 1.4mW radiant flux at 325nm, 4.5V forward voltage, 40mA current, and a 40° view angle. The hemi lens design helps shape the emission for compact optical paths, small test chambers, sensor modules, and laboratory instruments.
This 325nm uv led is not a general decorative UV lamp and not a high-power curing lamp. It is a precision UV LED component for OEM systems, including spectroscopy equipment, fluorescence excitation instruments, chemical detection tools, biological analysis devices, UV sensing systems, and customized optical modules. The TO18 package makes it practical for engineers who need a small ultraviolet emitter with defined electrical and optical parameters.
The 310nm option can be used when a shorter UVB wavelength is required, while the 340nm option is suitable for longer UVA applications. The 325nm uv led provides a middle wavelength option for projects that require UV output around 325nm. Final optical performance depends on the driver circuit, thermal path, lens design, target distance, detector response, and system calibration.
For stable operation, this UV LED should be driven with proper current control and suitable thermal management. Although the current is only 40mA, UV LED performance can still be affected by heat, electrical overstress, reverse voltage, soldering conditions, and optical contamination. Engineers should verify the LED inside the final system before mass production.
This 325nm uv led emits ultraviolet radiation and should be handled carefully. Do not look directly at the working LED and do not expose skin or eyes to UV radiation. Use protective eyewear, shielding, warning labels, and safe operating procedures when testing or integrating the component into equipment.
Specifications
Brand: DOWA
Model NO.: xFxVL-1H411
Wavelength: 310nm / 325nm / 340nm
TO Type: TO18
Radiant Flux: 1.3mW at 310nm / 1.4mW at 325nm / 1.3mW at 340nm
Voltage: 5V at 310nm / 4.5V at 325nm / 4V at 340nm
Current: 40mA
View Angle: 40°
Lens Type: Hemi
TO Diameter: φ5mm
FAQ
What is this 325nm uv led used for?
This 325nm uv led is used as a compact UV light source for spectroscopy, fluorescence excitation, sensing, chemical analysis, biological analysis, inspection equipment, and OEM optical modules.
Is this a DOWA UV LED?
Yes. The product is a DOWA xFxVL-1H411 series UV LED diode in a TO18 package.
What wavelength options are available?
The series includes 310nm, 325nm, and 340nm wavelength options.
What is the radiant flux at 325nm?
The 325nm version has 1.4mW radiant flux.
What is the voltage of the 325nm version?
The 325nm uv led version has a 4.5V forward voltage.
What package does this UV LED use?
It uses a TO18 hemispherical can type package with a hemi lens and φ5mm TO diameter.
What is the view angle?
The view angle is 40°.
Is this LED suitable for UV curing?
It may be used in selected low-power UV curing or material-response tests, depending on the material sensitivity and required UV dose. It is not a high-power curing lamp.
Can this 325nm uv led 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 analysis equipment.
Is it safe to look at the LED directly?
No. Do not look directly at the working UV LED or expose skin and eyes to UV radiation. Use protective eyewear, shielding, and warning labels during testing and equipment integration.
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