PERiLED 3W IR Power LED 940nm 60° Lens Infrared Emitter

PERiLED 3W 940nm Infrared Power LED with Integrated 60° Lens

The PERiLED 3W IR power LED emits at 940nm, a wavelength that is invisible to the human eye with no visible red glow. It features an integrated 60° optical lens that concentrates the infrared output into a defined beam. The bare emitter format supports direct thermal mounting onto an external heatsink or custom PCB assembly.

Key features

• 940nm wavelength: Completely invisible infrared output with no visible red glow, suitable for covert illumination and optical detection.
• Integrated 60° lens: Concentrates radiant flux into a 60-degree beam angle.
• Forward voltage 1.3V–1.5V DC: Low forward voltage profile for low-voltage circuits and constant-current drivers.
• Bare emitter format: Designed for direct mounting to an external aluminum heatsink or custom PCB assembly.
• Application areas: CCTV night vision, security barriers, photoelectric sensors, machine vision, optical encoders, IR remote control, free-space optical communication, NIR optical testing, and prototype builds.

Technical specifications

• Power rating: 3W
• Peak wavelength: 940nm (invisible IR)
• Forward voltage (V_F): 1.3V–1.5V DC
• Forward current (I_F): 600mA–700mA
• Beam angle: 60 degrees
• Radiant flux / output: Approx. 250mW–400mW
• Operating temperature: -20°C to +60°C
• Lifespan: > 50,000 hours

Operating and safety requirements

• Current-limiting circuit required: The LED must be driven with a constant-current driver or current-limiting circuit at 600mA–700mA. Direct connection to a voltage source without current regulation can cause thermal runaway and destroy the chip.
• External aluminum heatsink required: The 3W emitter must be mounted directly onto an adequate external aluminum heatsink using thermally conductive adhesive or thermal grease before power is applied.
• Invisible light warning: Light at 940nm cannot be seen by the naked human eye, but intense optical energy is emitted. Do not look directly into the lens when powered on. Use a smartphone camera or infrared sensor card to confirm operation, and wear appropriate IR protection goggles during testing.