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Help CenterTOCON_A4 UVA Photodetector With Integrated Amplifier
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TOCON_A4
UVA-only SiC based UV photodetector with integrated amplifier
◆ TOCON_A4 UV Photodetector General Features
Properties of the TOCON_A4 UV Photodetector
• UVA-only SiC based UV photodetector in TO5 housing with concentrator lens cap
• 0 … 5 V voltage output
• peak wavelength at 331 nm
• max. radiation (saturation limit) at peak is 18 μW/cm2, minimum radiation (resolution limit) is 1.8 nW/cm2
• Applications: UVA radiation detection
What is a TOCON?
A TOCON is a 5 Volt powered UV photodetector with integrated amplifier converting UV radiation into a 0 … 5V volt-age output. The V out pin of the TOCON can be directly connected to a controller, a voltmeter or any other data analyz-ing device with voltage input. Highly modern electronic components and a hermetically sealed metal housing with UV glass window eliminates noise caused by parasitic resistance paths inside the package or EMI. A TOCON is a per-fect solution for each industrial UV sensing application starting from flame detection at pW/cm2 level up to UV curing lamp control at W/cm2 level. This thirteen orders of magnitude range is covered by ten different TOCONs that differ by their sensitivity. The TOCONs are produced as UV broadband sensors or with filters for selective measurement.
Silicon Carbide (SiC) detector chip inside
Sophisticated electronics make a TOCON a reliable component in harsh environments as well as for extremely low or extremely high UV radiation. But what makes the TOCON a quasi eternally living sensor is the sglux in-house pro-duced SiC detector chip featured by a PTB-reported extreme radiation hardness.
◆ TOCON_A4 UV Photodetector Specifications
| Parameter | Symbol | Value | Unit |
| Spectral Characteristics | |||
| Typical Responsivity at Peak Wavelength | Smax | 280 | mV/µW/cm2 |
| Wavelength of max. Spectral Responsivity | λmax | 331 | nm |
| Responsivity Range (S=0.1*Smax) | – | 309 … 367 | nm |
| Visible Blindness (Smax/S>405nm) | VB | > 1010 | – |
| General Characteristics (T=25°C, Vsupply=+5 V) | |||
| Supply Voltage | VSupply | 2.5 … 5 | V |
| Saturation Voltage | VSat | VSupply - 5% | V |
| Dark Offset Voltage | VOffset | 700 | µV |
| Temperature Coefficient at Peak | Tc | %/K | |
| Current Consumption | I | 150 | µA |
| Bandwidth (-3 dB) | B | 15 | Hz |
| Risetime (10-90%) | trise | 0.069 | s |
| (other risetimes on request) | |||
| Maximum Ratings | |||
| Operating Temperature | Topt | -25 … +85 | °C |
| Storage Temperature | Tstor | -40 … +100 | °C |
| Soldering Temperature (3s) | Tsold | 300 | °C |
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