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Home / Products / SiC UV TOCONs

SiC UV TOCONs

  • SiC based UV sensor with integrated amplifier and 0 – 5 V voltage output
  • Measures intensities from 1.8pW/cm² up to 18W/cm²
  • Spectral response for broadband UV or filtered for UVA, UVB, UVC or UV-Index
  • Also available for blue light (GaP chip) or visible light (Si chip) measurement.
  • Available in TO5 housings or as miniature sensor probes (stainless steel or plastic).
  • Special TOCONs for hydrogen flame sensing (TOCON_F) and for fire detection (TOCON_N) available.
  • Also available for operating temperatures up to 120°C (standard is 85°C).
  • Please learn more about the sglux TOCONs here: TOCON selection guide.

All TOCONs are always on stock. They can be ordered via our web shop or with an email addressed to welcome@sglux.de. Alternatively, we are happy to issue a quotastion or you may click on our shop’s QUOTATION function, instead of CHECKOUT.

Grid view List view
  • Broadband UV

    Broadband UV (11)

    spectral sensitivity from 227 to 360 nm, peak wavelength 290 nm, sorted by irradiance.
  • UVA

    UVA (6)

    spectral sensitivity from 309 to 367 nm, peak wavelength 331 nm, sorted by irradiance.
  • UVB

    UVB (3)

    spectral sensitivity from 243 to 303 nm, peak wavelength 280 nm, sorted by irradiance.
  • UVC

    UVC (10)

    spectral sensitivity from 225 to 287 nm, peak wavelength 275 nm, according to DVGW W 294-3:2006 and OENORM M5873 and DIN 19294, sorted by irradiance.
  • UV-Index (Erythema)

    UV-Index (Erythema) (3)

    for UV-Index measurements according to ISO 17166, sorted by irradiance.
  • Blue light

    Blue light (6)

    spectral sensitivity from 390 to 515 nm, peak wavelength 445 nm, for blue light measurements, sorted by irradiance.
  • Galliumphosphide (GaP)

    Galliumphosphide (GaP) (6)

    spectral sensitivity from 240 to 560 nm, peak wavelength 445 nm, for UV + VIS measurements, sorted by irradiance.
  • Silicon (Si)

    Silicon (Si) (3)

    for lux measurements, v-lambda weighted, spectral sensitivity from 390 to 800 nm, peak wavelength 560 nm, sorted by irradiance.

Cart

We gladly advise you on this product

Romana Sonnenberg
Dipl.-Ing.

+49 (0) 30 53015211
Gabriel Hopfenmüller
Dipl.-Ing.

+49 (0) 30 53015211
Tilman Weiss
Dr.-Ing.

+49 (0) 30 53015211
Niklas Papathanasiou
Dr. rer. nat.

+49 (0) 30 53015211

Accessories

  • TOCON steel housing

    optional probe housing for TOCON detectors, M12x1, EMC safesteel housing for all TOCONs, M12x1 threadSingle Price: 110€
    Product Description
    • steel housing for all TOCONs
    • M12x1 thread, length 32 mm
    • supply voltage 7 to 24 V
    • 0 to 5 V signal output
    • integrated sensor connector, incl. 2 m cable
  • TOCON_N steel housing

    optional probe housing for TOCON N series, M12x1, EMC safesteel housing for all TOCON N series, M12x1 threadSingle Price: 110€
    Product Description
    • steel housing for TOCON N series
    • M12x1 thread, length 39.5 mm
    • supply voltage 7 to 24 V
    • 0 to 5 V signal output
    • integrated sensor connector, incl. 2 m cable
  • TOCON PTFE housing

    optional probe housing for TOCON detectors, material PTFE, M12x1, EMC safePTFE housing for all TOCONs (except lens cap), M12x1 threadSingle Price: 110€
    Product Description
    • PTFE housing for all TOCONs (except lens cap)
    • M12x1 thread, length 31 mm
    • supply voltage 7 to 24 V
    • 0 to 5 V signal output
    • integrated sensor connector, incl. 2 m cable
  • TOCON Water PTFE Housing

    optional probe housing, material PTFE, G1/4", water proof, EMC safePTFE housing for all TOCONs (except lens cap), G1/4" thread, water proofSingle Price: 110€
    Product Description
    • PTFE housing for all TOCONs (except lens cap)
    • G1/4″ thread, water proof up to 10 bar
    • supply voltage 7 to 24 V
    • 0 to 5 V signal output
    • integrated sensor connector, incl. 2 m cable
  • TOCON Water Steel Housing

    optional probe housing, G1/4", water proof, EMC safesteel housing for all TOCONs (except lens cap), G1/4" thread, water proofSingle Price: 110€
    Product Description
    • steel housing for all TOCONs (except lens cap)
    • G1/4″ thread, water proof up to 10 bar
    • supply voltage 7 to 24 V
    • 0 to 5 V signal output
    • integrated sensor connector, incl. 2 m cable
  • TOCON starter kit

    optional TOCON accessoryfor initial testing setup for all TOCON detectorsSingle Price: 20€
    Product Description
    • kit for initial testing setup
    • 0 to 5 V signal output
    • usable with all TOCON detectors

FAQ

What is a TOCON?
A TOCON is a UV photodetector that contains a SiC or a GaP detector chip and an amplifier circuit that outputs a voltage of 0 to 5 V. This output voltage is linear in proportion to the UV radiation intensity reaching the chip.
Which are the advantages and disadvantages compared with a photodiode?
Compared with a bare UV photodiode the TOCON’s big advantage is the amplifier’s position inside the TO5 metal housing and its close proximity to the detector. This construction protects the usually very low current levels generated by the detector chip from electromagnetic interference and also from moisture and pollution induced disturbances. A point to be considered of the TOCON is the lower dynamic range (approx. 3 orders of magnitude) compared with a SiC UV photodiode (10 orders of magnitude). To overdome this disadvantage we offer each TOCON type in many different amplification levels to avoid saturation and too low voltage output levels for nearly all applications.
Which are the advantages and disadvantages compared with a sensor probe?
A TOCON is smaller and much less expensive than a sensor probe. Additionally a TOCON is water pressure proof and hermetically sealed. A point to be considered is that at the presence of strong electromagnetic interferences or in case of excess voltage a sensor probe could be of a better performance. The reason is that a sensor probe contains more space that is needed for components that avoid problems caused by ESD or excess voltage.
Is the TOCON calibrated?
No, the TOCON is not calibrated. If required, the sglux calibration laboratory offers an individual calibration service including a calibration certificate. This document assigns the voltage output of one specific TOCON to the irradiation of a specific UV radiation source. As-delivered the TOCON is sensitive in the specified range. Example: A TOCON_ABC6 is sensitive between 180 nW/cm² and 1.8 mW/cm². This means that the TOCON will saturate (output voltage = input voltage) at approx. 1.8 mW/cm². At the lower end a radiation of 180 nW/cm² will still output a couple of mV. While selecting a TOCON, the most important thing to consider is to not illuminate the TOCON until saturation level. A saturation will not damage the TOCON but likely the voltage output will no longer be linear to the radiation input because any increase of radiation below the saturation point will not further increase the output voltage.
What is the maximum signal output of a TOCON?
The theoretical maximum signal output is always a little less (approx. 5%) than the supply voltage.
Do I need an external amplifier?
No, no additional amplifier is required.
How can I use my TOCON?
Please use a standard voltmeter to read out the signal. Caution! Wrong wiring of power supply can lead to immediate destruction of the device. Please refer to our application note delivered with the device.
What about the TOCON scatter?
A TOCON is a sophisticated product with many internal components. Many of these internal components, and especially the quantum efficiency of the UV-sensing SiC chip and the gain resistor value, have sample to sample scatter (variation). TOCONs are designed for a total scatter of +/-20% in signal and some devices will show greater variance. It is recommended that that when choosing a TOCON model for production, the TOCON should be chosen so that the 5V saturation level is TWICE the expected signal from the device under normal conditions and that under normal/design conditions, output voltage is about 2.5V. Customers are especially cautioned to AVOID SATURATION conditions. Saturation is when Signal voltage equals Power Supply Voltage (normally 5V). Saturation will not damage the TOCON but it can lead to PERSONAL SAFETY PROBLEMS or other DAMAGE due to unknown and potentially excess UV exposure levels.
What is the output pin impedance (or the drive capability) of the TOCON sensor?
The TOCON can drive resistive loads as low as 2 kOhms, but we recommend not to stress this limit unnecessarily. In normal environments an input impedance of >= 100 kOhm is recommended for the readout circuitry. In very harsh (EMI/EMC/noisy) surroundings impedances of >= 10 kOhm can be considered taking into account a slight reduction in output swing. The TOCON is stable for capacitive loads up to 30 pF under all circumstances. If more capacitive loading can not be avoided a series resistor of 10 Ohms … 100 Ohms may be required to ensure stability up to few hundred nF.

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