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IR Infrared Transmitter LED Module

IR Infrared Transmitter LED Module

Best price now

$3.91at KuriosityChecked Nov 9

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Price facts

  • Last seen at $3.91 at Kuriosity on Nov 9.

    • Our take on the IR Infrared Transmitter LED Module

    This is a bare 940nm infrared LED module that emits light the human eye cannot see. Pulsed, it works like a TV remote's emitter; driven continuously, it can light a scene for IR-sensitive night vision cameras. Its 20° beam is fairly narrow, so it needs aiming, and it is a component for breadboards and small builds rather than a finished gadget. Compared with wider-angle IR illuminators, it trades coverage for a tighter, more directed beam.

    Best forMakers building a DIY remote or IR blasterAdding IR illumination to a night vision camera projectBreadboard and microcontroller experimentsTight, aimed IR signaling over short range
    Pros
    • 940nm wavelength matches most consumer remote receivers
    • Handles 1A peak pulses for remote-style bursts
    • Runs on 1.2–4.0V, so it suits 3.3V and 5V logic setups
    • Wide -40 to 85°C operating range
    • Small, simple two-terminal part
    Cons
    • Bare module, no driver, resistor or housing included
    • 20° beam is narrow and needs careful aiming
    • 100mA continuous limit means it needs current control
    • Invisible output makes it hard to confirm it is working without a camera
    • No mounting hardware or cable in the box

    IR Infrared Transmitter LED Module prices at every store

    • KuriosityNew

      In stockShips from Singapore · priced in SGD (SGD 5.00) · duties may applyReturn policy

      $3.91Checked Nov 9
      Visit Kuriosity

    About the IR Infrared Transmitter LED Module

    This is an infrared (IR) LED module that transmits at a wavelength of 940nm. It has a transmitting angle of about 20°.

    The LED can be pulsed to work like a TV remote control. It can also be powered on constantly to work like the illumination in night vision cameras.

    Input voltage
    1.2 - 4.0V
    Forward current
    100mA continuous, 1A peak
    Wavelength
    940nm
    Transmitting angle
    20°
    Operating temp
    -40 to 85°C
    In the box
    1 x IR (Infrared) Transmitter / LED Module

    Questions and answers

    Can it replace a TV remote's emitter?
    Yes, if you pulse it from a microcontroller at the right carrier frequency and code. It emits at 940nm, which most TV and set-top receivers respond to. You supply the driver circuit and current limiting.
    Will it work as a night vision illuminator?
    It can, driven continuously within its 100mA limit. The 20° beam is narrow, so it lights a small area and must be aimed. Many security cameras are sensitive to 940nm.
    What voltage does it need?
    It runs from 1.2 to 4.0V. Because it is a bare LED, add a resistor or constant-current driver so forward current stays within 100mA continuous or 1A peak.
    Is a resistor or driver included?
    No. The shipping list is one IR transmitter LED module only. You provide wiring, current limiting and any mounting.
    How do I check it is emitting?
    The 940nm light is invisible to the eye. Point a phone camera at it while it runs; many phone sensors show a faint purple glow.
    What is the beam angle?
    About 20°, which is narrower than many IR illuminators. Aim it directly at the receiver or the area you want lit.
    Where is the IR Infrared Transmitter LED Module cheapest?
    At Kuriosity, for $3.91, as of our latest check.