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InGaAs PIN Photodiodes

Marktech manufactured Indium Gallium Arsenide (InGaAs) PIN photodiodes are made using InGaAs/InP technology. They have a spectral sensitivity in the 600nm to 2600nm range for applications requiring low dark current, high speed, and sensitivity, such as fiber optics, optical communications, medical diagnostics, and SWIR imaging.

Marktech’s lineup of advanced InGaAs photodiode detectors consists of two detector families or series based on their spectral sensitivity ranges:

Satellites and Precision Optics

InGaAs PIN Photodiode

Product Photo Features Active Area Peak Wavelength Spectral Range Size Buy Now Specs
MTD6013D3-PD Detector 0.5 mm 1250 750-1750 3mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTMD142345PDT38 NEW 1.0 mm 1625 600-1750 TO-5 Metal Can Flat Lens (8 pin) Price Quote
MTMD1479PD6T38 Detector/Emitter 1.0mm 2600 600-2600 TO-5 Metal Can Flat Lens (8 pin) Price Quote
MTMD34679PD6T38 Detector/Emitter 1.0 mm 1850 800-2600 TO-5 Metal Can Flat Lens (8 pin) Price Quote
MTPD1309D3-030 Detector 0.3 mm 1550 900-1700 3mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTPD1309SL-030 Detector 0.3 mm 1550 900-1700 TO-46 Metal Can Ball Lens (3 pin) Digikey
Mouser
MTPD1346D-010 Detector 0.1 mm 1625 600-1750 TO-46 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD1346D-030 Detector 0.3 mm 1625 600-1750 TO-46 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD1346D-100 Detector 1.0 mm 1625 600-1750 TO-46 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD1346D-150 Detector 1.5 mm 1625 600-1750 TO-46 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD1346D-200 Detector 2.0 mm 1625 600-1750 TO-39 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD1346D-300 Detector 3.0 mm 1625 600-1750 TO-39 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD1346SL-030 Detector 0.3 mm 1625 600-1750 TO-46 Metal Can Ball Lens (3 pin) Digikey
Mouser
MTPD1346SL-100 Detector 1.0 mm 1625 600-1750 TO-46 Metal Can Ball Lens (3 pin) Digikey
Mouser
MTPD2600-100 Detector 1.0mm 1850 800-2600 TO-46 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD2601FT-030 Detector 0.3 mm 1850 800-2600 Pigtail Metal Can Flat Lens (1 pin) Digikey
Mouser
MTPD2601K8-150 Detector 1.5 mm 1850 800-2600 TO-39 Metal Can Domed Lens (2 pin) Digikey
Mouser
MTPD2601K8-300 Detector 3.0 mm 1850 800-2600 TO-39 Metal Can Domed Lens (2 pin) Digikey
Mouser
MTPD2601N-030 Detector 0.3 mm 1850 800-2600 TO-46 Metal Can Domed Lens (3 pin) Digikey
Mouser
MTPD2601N-100 Detector 1.0 mm 1850 600-2600 TO-18 Metal Can Domed Lens (3 pin) Digikey
Mouser
MTPD2601SIW-100 Multi Detector 1.0 mm 1850 // 950 (Si) 800-2600 // 250-1100 (Si) TO-39 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD2601SL-030 Detector 0.3 mm 1850 800-2600 TO-46 Metal Can Ball Lens (2 pin) Digikey
Mouser
MTPD2601SL-100 Detector 1.0 mm 1850 800-2600 TO-46 Metal Can Ball Lens (2 pin) Digikey
Mouser
MTPD2601T-030 Detector 0.3 mm 1850 800-2600 TO-18 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD2601T-100 Detector 1.0mm 1850 800-2600 TO-18 Metal Can Flat Lens (3 pin) Digikey
Mouser
MTPD2601T8-150 Detector 1.5 mm 1850 800-2600 TO-39 Metal Can Flat Lens (2 pin) Digikey
Mouser
MTPD2601T8-300 Detector 3.0 mm 1850 800-2600 TO-39 Metal Can Flat Lens (2 pin) Digikey
Mouser
MTPD3001D1-030 Detector 0.3 mm 1300 750-1750 3mm Plastic Domed Lens (2 pin) Digikey
Mouser
MTPD3001D3-030 Detector 0.3 mm 1300 750-1750 3mm Plastic Flat Lens (2 pin) Digikey
Mouser
MTPD3001D5-030 Detector 0.3 mm 1300 750-1750 3mm Plastic Domed Lens (2 pin) Digikey
Mouser
MTSM1346SMF1-030 Detector 0.3 mm 1625 600-1750 3.0x3.0 mm SMD Flat Lens Digikey
Mouser
MTSM1346SMF1-030S Detector 0.3 mm 1625 600-1750 3.0x3.0 mm SMD Flat Lens on Board Digikey
Mouser
MTSM1346SMF1-100 Detector 1.0 mm 1625 600-1750 3.0x3.0 mm SMD Flat Lens Digikey
Mouser
MTSM1346SMF1-100S Detector 1.0 mm 1625 600-1750 3.0x3.0 mm SMD Flat Lens on Board Digikey
Mouser
MTSM1346SMF2-150 Detector 1.5 mm 1625 600-1750 5.0x5.0 mm SMD Flat Lens Digikey
Mouser
MTSM1346SMF2-150S Detector 1.5 mm 1625 600-1750 5.0x5.0 SMD Flat Lens on Board Digikey
Mouser
MTSM1346SMF3-300 Detector 3.0 mm 1625 600-1750 7.24x7.24 mm SMD Flat Lens Digikey
Mouser
MTSM1346SMR1-030 Detector 0.3 mm 1625 600-1750 3.0x3.0 mm SMD Domed Lens Digikey
Mouser
MTSM1346SMR1-030S Detector 0.3 mm 1625 600-1750 3.0x3.0 mm SMD Domed Lens on Board Digikey
Mouser
MTSM1346SMR1-100 Detector 1.0 mm 1625 600-1750 3.0x3.0 mm SMD Domed Lens Digikey
Mouser
MTSM1346SMR1-100S Detector 1.0 mm 1625 600-1750 3.0x3.0 mm SMD Domed Lens on Board Digikey
Mouser
MTSM1346SMR2-150 Detector 1.5 mm 1625 600-1750 5.0x5.0 mm SMD Domed Lens Digikey
Mouser
MTSM1346SMR2-150S Detector 1.5 mm 1625 600-1750 5.0x5.0 mm SMD Domed Lens on Board Digikey
Mouser
MTSM2601SMF1-030 Detector 0.3 mm 1850 800-2600 3.0x3.0 mm SMD Flat Lens Digikey
Mouser
MTSM2601SMF1-030S Detector 0.3 mm 1850 800-2600 3.0x3.0 mm SMD Flat Lens on Board Digikey
Mouser
MTSM2601SMF1-100 Detector 1.0 mm 1850 800-2600 3.0x3.0 mm SMD Flat Lens Digikey
Mouser
MTSM2601SMF1-100S Detector 1.0 mm 1850 800-2600 3.0x3.0 mm SMD Flat Lens on Board Digikey
Mouser
MTSM2601SMF2-150 Detector 1.5 mm 1850 800-2600 5.0x5.0 mm SMD Flat Lens Digikey
Mouser
MTSM2601SMF2-150S Detector 1.5 mm 1850 800-2600 5.0x5.0 mm SMD Flat Lens on Board Digikey
Mouser
MTSM2601SMF2-SP4-030 Detector 3.0mm 1850 800-2600 5.0x5.0 mm SMD Flat Lens Price Quote
MTSM2601SMF3-300 Detector 3.0 mm 1850 800-2600 7.24x7.24 mm SMD Flat Lens Digikey
Mouser
MTSM2601SMR1-030 Detector 0.3 mm 1850 800-2600 3.0x3.0 mm SMD Domed Lens Price Quote
MTSM2601SMR1-100 Detector 1.0 mm 1850 800-2600 3.0x3.0 mm SMD Domed Lens Digikey
Mouser
MTSM2601SMR2-150 Detector 1.5 mm 1850 800-2600 5.0x5.0 mm SMD Domed Lens Price Quote

Product Information

Photodiode chip active area sizes from 0.08mm to 3.0mm enable the optimal selection of low dark current, high speed, light sensitivity, and other detector characteristics for specific applications. InGaAs photodiode applications include fiber optics and free-space optical communications, medical diagnostics (glucose and blood gas), NIR-SWIR monitoring, IR laser alignment, infrared position sensing, spectroscopy, chromatography, and chemical analysis.

Most of Marktech’s standard InGaAs detectors do not have or need an integrated Thermal Electric Cooler (TEC)  because the photodiode already have exceptional responsivity. In many applications, thermoelectric cooling or amplification is not required, which reduces cost and improved overall efficiency. However, TECs, transimpedance amplifiers (TIAs), and other components can be custom packaged with our InGaAs detectors for special applications requiring lower dark current and higher signal to noise (S/N) performance.

In addition to its InGaAs PIN photodiodes, Marktech offers foundry services for the epitaxial growth of SWIR wafers in the 1.0 um to 2.6 um range, using InP material as the base substrate. Marktech is currently producing these high-reliability wafers in 2″, 3″, and 4″ diameters. Among the applications for these wafers are photodetectors, linear arrays, and image sensors. Photodetectors processed using our epitaxial wafers provide significant advantages, including lower dark current, better shunt resistance, and improved performance at lower operating temperatures.

InGaAs PIN photodiodes are available in various package types such as hermetically sealed metal cans (TO-5, TO-18, TO-39, and TO-46), ceramic SAW packages, pigtail metal cans, 3mm molded plastic through-hole (flat lens or dome ceramic), and Marktech’s latest enhanced packaging system – the seam welded surface mount device (SMD) ATLAS package. InGaAs detectors in our hermetic ATLAS package have superior protection against oxygen and moisture ingress. The compact SMD form factor is highly suited to high-volume manufacturing. In addition, the low profile of ATLAS packaged InGaAs detectors is useful in wearable applications. We can also incorporate the photodetector die into custom-designed assemblies.

Multiple InGaAs photodiode elements are available in linear and quadrant array format. Monolithic arrays and quadrants are available in 1.7μm cut-off InGaAs with 600nm to 1700nm spectral sensitivity material. Assembled arrays and quadrants are available in 2.6μm cut-off InGaAs with 800nm to 2600nm spectral sensitivity material. 

In addition to InGaAs infrared detectors, Marktech offers a range of standard silicon detectors such as photodiodes (SiPDs), phototransistors, and avalanche photodiodes. Our silicon detectors have a spectral sensitivity of 400 nm to 1100 nm for optical switching, Vis-NIR sensing, position sensing, laser alignment, light & laser monitoring, spectroscopy, oximetry, and other applications requiring high-speed, consistent, and high-reliability performance. Marktech also have detectors using a combination of multiple InGaAs and Silicon photodiodes, which enables detection from 250nm to 2600nm.

Analytical Instruments & Scientific Research

InGaAs photodiodes are indispensable component in measuring light intensity and wavelength, especially in infrared detection, near infrared detection, and shortwave infrared (SWIR) detection.. They are extensively used in fields such as IR spectroscopy, fluorescence, and radiometry to facilitate accurate data collection, enabling breakthroughs in physics, chemistry, biology, and more.

Communications

Since many modern fiber optic communication system use 1550nm light, InGaAs photodetectors are the key link of modern optical communication systems. By converting light signals into electrical signals, these detectors enable efficient and high-speed data transmission in fiber optic networks, ensuring seamless connectivity for telecommunications, internet services, and data centers.

Medical and Biotechnology

In the medical and biotechnology industries, SWIR sensors using InGaAs IR detectors are invaluable for applications such as detection of glucose, urinalysis, and many other biomarker. Th SWIR wavelength ranges have been dubbed the medical diagnostic fingerprint spectrum due to importance in sensing many biomarker molecules. Their exceptional sensitivity and precision allow for accurate measurements of biomolecules, helping researchers and healthcare professionals advance diagnostic techniques and develop new treatments. Multiple LEDs across the UV-visible-NIR-SWIR spectrun can be combined with our InGaAs and silicon detectors to enable rapid quantification with dispersive technology.

Aerospace and Defense

InGaAs photodetectors are extensively utilized in aerospace and defense applications, including infrared receivers in satellite communication systems, remote sensing, and laser rangefinders. SWIR detectors can detect through fog, smoke, and some plastics. These detectors withstand harsh environmental conditions, ensuring reliable and accurate data acquisition for critical missions and surveillance operations.

Environmental Monitoring

From monitoring air quality to studying climate change, InGaAs photodetectors enable precise measurement of moisture and and are ky element in certain gas sensors. A high sensitivity infrared light detector is key technology for moisture, chemical, and biomarker sensor development.

LiDAR & Position Sensing

InGaAs photodiodes are becoming increasing important in LiDAR and position sensing system using 1550nm laser light source. At 1550nm, laser beams with forty times more power can be use compared to 940nm without risking eye damage. InGaAs photodiodes are more effective than silicon in many active infrared sensor applications. We can combine our infrared detectors with infrared LEDs for infrared reflective sensor or infrared photoreflector applications.

InGaAs Detector Characteristics

High Sensitivity

InGaAs photodiode detectors offer exceptional sensitivity, allowing them to detect even the faintest traces of light in the near infrared (NIR), short wave infrared (SWIR), and extended SWIR spectral ranges. This sensitivity is often a key enabler in many medical diaghostic and chemical analysis applications. InGaAs infrared detectors are often the optimum choice for applications requiring superior infrared sensor technology.

Wide Spectral Range

Our InGaAs infrared sensors operate across a broad range of wavelengths, from visible (600nm) to short wave infrared (SWIR). This versatility makes them suitable for diverse applications in different industries, accommodating a wide range of light sources. InGaAs photodiodes can function both as a SWIR sensor, NIR sensor, and visible light sensor.

Fast Response Time

Marktech InGaAs photodetectors exhibit rapid response times, enabling them to capture fast-changing infrared light signals. This characteristic is critical for applications that demand real-time measurements or involve high-speed data transmission such as free space and fiber optic communications.

Compact and Lightweight

InGaAs photodetectors are compact and lightweight, making them ideal for integration into various devices and systems. Their small form factor of these IR photodiodes allows for easy incorporation into portable instruments, medical devices, wearables, optical sensors, and other space-constrained applications.

Low Noise

InGaAS photodetectors minimize unwanted signal interference and provide reliable and accurate measurements. Our InGaAs photodiodes can be packaged with thermoelectric coolers (TECs) and transimpedance amplifiers to further improve signal-to-noise ratios, resulting in improved data quality and enhanced measurement accuracy.

Thermal Stability

InGaAs photodiodes have more thermal stability or a lower temperature coefficient of sensitivity (< 0.1% / K) over a broader range of wavelengths than silicon. As a result, our InGaAs photodiodes are ideal as the primary detector elements in non-dispersive spectrometers (Vis-NIR-SWIR), pyrometers, and medical diagnostic devices.

Additional Resources

Need Parts?

Do you need a small number of LEDs for your proof of concept? Or, are you looking to purchase a run for your prototypes? Visit our online stores at Digi-Key Electronics and Mouser Electronics today. In Japan, our products are now available through Rikei Corporation. In Israel, our products are now available through Militram. In Canada, our products are now available through ARL Group.

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Let us help select the perfect parts and services to make your application come to life.

Near IR Scan of a Cancer Cell

InGaAs PIN Photodiode

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