Name: DOWA UV LED TO39 Flat Diode - yoyo-uv.com
SKU: xFxVL-1F131
Price: 66.00 USD
Availability: InStock

DOWA UV LED Source – Wide Angle

The xFxVL-1F131 is a DOWA UV LED series aimed at engineers who need a miniature ultraviolet diode with a wide-angle output. With wavelengths of 310nm, 325nm, and 340nm, it is useful for optical testing, analysis instruments, fluorescence excitation, and OEM UV source development.

DOWA TO39 Flat Can Packaging

The DOWA UV LED is manufactured in TO39 metal-can package with flat lens and φ9mm TO diameter. The design of the flat can allows forming a wide output cone and its use in test fixtures, instrument casings, laboratory units, and optical assemblies design.

114° Wide Angle of View

This DOWA UV LED has a wide angle of view of 114°, which makes it convenient to use where wider UV radiation distribution is needed instead of narrow radiation cone. Such applications include sample area exposure, broad detector coverage, chamber lighting, and multi-point optical systems.

Options in 310nm, 325nm, and 340nm Wavelengths

The xFxVL-1F131 series offers three models with wavelengths of 310nm, 325nm, and 340nm. The radiant flux is 1.5mW for 310nm version, 1.7mW for 325nm and 340nm wavelengths, thus giving engineers more wavelength options in the same TO39 flat packaging.

UV Light Source Component for OEM Instruments

This DOWA UV LED is offered as an ultraviolet light source component rather than a finished lamp. The DOWA LED may be used for spectroscopy, fluorescence testing, chemical and biological analysis, sensors, material reaction tests, and specialized UV inspection instruments.

DOWA UV LED 310nm 325nm 340nm

Product Details Description

The xFxVL-1F131 is a DOWA UV LED series intended for professional optical, analysis and sensing equipment. It offers three wavelengths options – 310nm, 325nm, and 340nm – and the customer can choose appropriate ultraviolet range according to the target material, detector reaction, testing method or equipment design.

This DOWA UV LED utilizes the TO39 flat can packaging with φ9mm TO diameter. As against narrow beam hemispherical lens, the flat lens allows a significantly greater view angle – 114°. It makes the product applicable for cases when wider UV illumination is required – for example, sample area illumination, fluorescence excitation zones, small test chamber, sensors arrays and optical inspection 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. Such specifications make this series appropriate for low power UV systems that require a certain wavelength and stable performance on the component level.

For spectroscopy and fluorescence applications, this DOWA UV LED may be used as the excitation source for laboratory equipment, optical test modules, inspection devices and customized measurement systems. For chemical and biological analysis, the 310nm, 325nm and 340nm versions offer a certain wavelength selection. The performance should be confirmed in the full system with appropriate driver circuit, optical filter, working distance, detector sensitivity, heat path and calibration method.

The wide-angle emission makes the product different from narrow 6° or 24° TO-CAN UV LEDs. The product is more suitable for applications that require wide coverage than a narrow spot output. Such positioning makes easier for engineers to choose the appropriate DOWA UV LED depending on the beam angle and package type.

This product should not be described as consumer black light, LED strip, high-power curing lamp or sterilization product. It is a DOWA UV LED diode for OEM integration. Right product positioning helps to find the right buyers looking for TO39 UV LED components, wavelength specific UV sources and DOWA ultraviolet diode solutions.

For reliable operation, you have to use the proper current-controlled driver and avoid the electrical overstress. UV LED performance can be influenced by heat, soldering process, reverse voltage, handling, optical contamination and system alignment. The testing in the final product structure is recommended before mass production.

This DOWA UV LED produces ultraviolet radiation. Never look directly at the working diode and never expose your skin or eyes to UV radiation. Use the protective eyewear, shielding, warning labels and safe test procedure.

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 and 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 offers 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 flat lens and φ9mm TO diameter.

What is the view angle?

The view angle is 114° and makes this DOWA UV LED suitable for wider UV coverage than narrow-beam TO-CAN diode.

Can it be used for fluorescence excitation?

Yes. The 310nm, 325nm and 340nm options can be used for fluorescence excitation if the target material and detector system are appropriate for the selected wavelength.

Can this LED be used for UV curing?

It can be used for selected low power material reaction or UV curing tests if the material is sensitive to 310nm, 325nm or 340nm. But it is not a high-power curing lamp.

Can it be used for disinfection?

This product should not be promoted as the disinfection light source. It is more suitable for spectroscopy, sensing, fluorescence excitation and analytical equipment.

Is it safe to view directly?

No. Never look directly at the working UV LED or expose your skin and eyes to UV radiation. Use protective eyewear, shielding, warning labels and safe test procedure.