TOCON_NC1F
UVC-only SiC based UV photodetector for fast fire detection
1/3General Features
Properties of the TOCON_NC1F• UVC-only SiC based UV photodetector for fast fire detection• 0 … 5 V voltage output• Peak wavelength at 275 nm• Max. radiation (saturation limit) at 254 nm is 180 nW/cm2,minimum radiation (resolution limit) is 18 pW/cm2• Suitable for fire detection when sunlight is absent• High temperature usability up to 120°C available on request

About the TOCON_NC1F for fast fire detection
A TOCON is a UV photodetector with integrated amplifier converting UV radiation into a voltage. The Vout pin of theTOCON can be directly connected to a controller, a voltmeter or any other data analyzing device with voltage input.
Modern electronic components and a hermetically sealed metal housing with UV glass window eliminates noisecaused by parasitic paths inside the package and EMI.
The TOCON_NC1F is designed for fast fire detection. It works with an additional negative power supply that eliminates
the turn-on dead-time.
Please note that the TOCON_NC1F must not be used when sunlight could hit the sensor. This would result a falsealarm. Prior to use as a fire detection device a thorough evaluation process needs to be carried out.
Powering of the TOCON_NC1F needs a negative and positive power supply. For details please refer to page 3 of thisdatasheet. The product evaluation process of the TOCON_NC1F can be simplified using the optional “TOCON_N steel”
housing.
This housing is powered with a 7 ...24 VDC single power supply, the negative supply is generated internally. The
below picture shows a TOCON_N steel housing.

Properties of the TOCON_N steel• 7 – 24 V supply voltage with integrated bias generator• Robust stainless steel M12x1 thread body, length 39.5 mm• Integrated sensor connector (Binder 4-Pin plug) with 2m connector cable• For further details please refer to the datasheet of the TOCON_N steel housing.

sg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.deRev. 3.0 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.

TOCON_NC1F
UVC-only SiC based UV photodetector for fire detection
2/3Specifications
Parameter

SymbolValue

Unit

Typical Responsivity at Wavelength 254 nm

Smax

28mV/nW/cm2

Wavelength of max. Spectral Responsivity

λmax

275nm

Spectral Characteristics

Responsivity Range (S=0.1*Smax)–

225 … 287nm

Visible Blindness (Smax/S>405nm)

VB> 1010–VSupplysee p. 3

Typical temperature Coefficient at PeakTc< + 0.3%/KCurrent Consumption

I35µA

Bandwidth (-3 dB)

B

3.5 HzHzRisetime (10-90%)

trise100ms

Operating Temperature

Topt–40 … +85°C

Storage Temperature

Tstor–40 … +100°C

Maximum soldering temperature (for 3 seconds)

Tsold300°C

General Characteristics (T=25°C, Vsupply=+5 V)
Supply Voltage

Maximum Ratings

Normalized Spectral Responsivity

sg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.de
Rev. 3.0 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.

TOCON_NC1FUVC-only SiC based UV photodetector for fire detection
3/3

Field of View

pivot level = top surface of the detector window

wiring instructions
Caution: Wrong wiring or too high voltage lead to immediate destruction of the device. Please take care ofESD-safe handling.
PIN		
1		
2				3		Description
VOUT, Sensor output voltage (0 .... V+ ), referenced to GND
V- (typ -0.23V), allowed range -0.15 ... -(5.5V - V+). The negative supply voltage can be 		generated with a negative bias generator .
V+ (typ. 5V, allowed range 1.8 ... 5.35V

The total voltage between Pin V- and V+ must not exceed 5.5V.

Basic wiring

noise reduction in case of long wires
For reduction of noise and disturbance at the circuit
output, e.g. caused by wired longer than 0.5m thefollowing circuit is recommended.

sg lux GmbH | Richard-Willstätter-Str. 8 | D–12489 Berlin | Tel. +49 30 5301 5211 | welcome@sglux.de | www.sglux.de
Rev. 3.0 Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.