Contact us: +44 (0) 1942 671122

Contact us: +44 (0) 1942 671122


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Our range of Infrared sensors encompasses phototransistors & photodiodes in through hole plastic and Surface Mount packages with a choice of power ratings. Applications include position sensing, street light controls, security, daylight harvesting, machine vision, remote control, and detection in instruments.

Low Power IR Phototransistors

Cost effective, low power through-hole Phototransistors are available in a choice of specifications and a range of packages. 

  • T1 and T13/4 Through Hole
  • Side emit through Hole
  • Spectral range 400 - 1050nm
  • Low dark current
  • Choice of angular response
  • Compatible with IR reflow process
  • SFH313FA

Phototransistor selector guide PDF

LPT2023 Phototransistor PDF

SFH313FA Phototransistor PDF

Surface mount IR sensors

Low power chip LED infrared sensors offer a compact solution for infra red detection in a wide range of applications.

  • 1208, 0805 chip LED
  • spectral range 400 - 1050nm
  • Low dark current
  • Wide angular response
  • Compatible with IR reflow process

SMD Phototransistor Selector PDF

Low Power IR Side emit pair

The Liteon LTR5888 and LTE309 are offered as through-hole side looking  IR emitter detector pair mechanically and spectrally matched for a wide range of sensing applications.

  • LTE309 IR Emitter
  • Peak wavelength 940nm
  • Max forward current 50mA
  • Max peak current 1A 300pps, 
    10μs pulse
  • Angle of emission 40°
  • Compatible with IR reflow process
  • LTR5888DH IR Phototransistor
  • Integral visible light filter
  • On state collector current 500mA
  • Collector emitter breakdown voltage 30V

    LTE309 IR Emitter PDF

    LTR5888 Phototransistor PDF

    Miniature SMD Photodiode

    Our range of silicon photodiodes provide detection of light in ultra-violet, visible and infrared spectral regions. Features include small size, low noise, high speed and good spectral response. The LG-2020 is a miniature SMD photodiode.

    • 2.0x2.0mm 2020 package
    • Water clear flat top lens
    • Power rating 215mW
    • Peak sensing 940nm typ
    • Compatible with IR reflow process

    LG2020 Datasheet PDF

    BPD-BQ334 Datasheet PDF

    SMD Photodiode

    The LG-PD5050 silicon photodiode provides detection of light across a wide spectral range from ultra-violet, through visible into infrared  regions. Features include small size, low noise, high speed and good spectral response. 

    • 5.0x5.0x1.0mm package
    • Water clear flat top lens
    • Spectral range 300-1100nm
    • Peak sensing 940nm typ
    • Compatible with IR reflow process

    LG-PD5050 Datasheet PDF

    Ambient Light Sensor

    The ALS-PD070-01C silicon photodiode provides detection of Ambient Light consisting of a photodiode in miniature SMD package, moulded in water clear with flat top. An effective solution to the power saving of display devices. The high rejection ratio of infrared radiation and the spectral response of the ambient light sensor is close to that of human eyes.

    • 4.4x3.9x1.2mm package
    • Water clear flat top lens
    • Close to the human eye's response
    • Low sensitivity variation across various light sources
    • Operating temperature -40°C to 85°C
    • Wide supply voltage range, 2.5V to 5.5V

    ALS-PD70-01C/TR7 Datasheet PDF

    Chip LED Ambient Light Sensor

    The ALS-PT19-315 sensor provides detection of Ambient Light and comprises of a phototransistor in miniature SMD Chip LED package.  Everlight ALS series products offer an effective solution to power saving of display devices.
    The high rejection ratio of infrared radiation and the spectral response of the ambient light sensor is close to that of human eyes.

    • 1.7x0.8x0.6mm
    • Wide supply voltage range, 2.5V to 5.5V
    • Water clear flat top lens
    • Close to the human eye's response
    • Low sensitivity variation across various light sources
    • Operating temperature -40°C to 85°C

    ALS-PT19-315C-L177 Datasheet PDF

    Digital  Ambient Light Sensor

    The ALS-DPDIC17-78C digital ambient light sensor has integrated ADC, digital output I2C interface and interrupt. The light to digital converter combines photodiodes, current amplifiers, analog circuit and digital signal processor. In addition a built-in an optical filter for IR rejection is integrated and programmable interrupt function with high / low threshold.

    • 2.0x2.0x0.63mm
    • Wavelength range close to human eye
    • Wide supply voltage range, 2.4V to 3.6V
    • 50Hz / 60Hz rejection
    • Close to the human eye's response
    • Power saving sleep mode
    • Operating temperature -40°C to 85°C

    ALS-DPDIC17-78C-L749-TR8 PDF