HK265S39CG-20 3939 SMD UV LED 365nm Ultraviolet Light Emitting Diode 20mA 3939 Package (3939 LED)

The HK265S39CG-20 is a 3939 SMD ultraviolet light emitting diode designed for PCB integration in UV detection curing and inspection systems. It provides stable UV output with reliable performance in compact electronic assemblies.

Key Features -

• Ultraviolet emission wavelength approx 365nm typical
• Standard 3939 SMD LED package
• Forward current approx 20mA typical operation
• Stable optical output with low power consumption
• High reliability for continuous use
• Suitable for automated assembly processes

Specifications -

• Peak wavelength - approx 365nm UV range
• Forward current - approx 20mA typical
• Forward voltage - approx 3.0V to 3.6V
• Power dissipation - approx 60mW
• Package type - 3939 SMD LED
• Viewing angle - approx 120 degree
• Operating temperature - approx -20 to 85 degree C

Applications -

• UV curing systems for adhesives and coatings
• Currency detection and counterfeit verification
• UV sterilization and disinfection systems
• Fluorescence detection and inspection
• Medical and industrial testing equipment

Pinout Configuration -

• Anode - positive terminal pad marking
• Cathode - negative terminal pad

Working Principle -

The HK265S39CG-20 UV LED emits ultraviolet light when forward biased current flows through the semiconductor junction. The UV wavelength depends on semiconductor material and forward current and is used in curing detection and sterilization applications.