VT30N3

The VT30N3 is a Photocell or Light-Dependent Resistor in metal housing of TO-5 type. It can provide a very economical and technically superior solution for many applications where the presence or absence of light is sensed or where the intensity of light needs to be measured. The bulk-effect photoconductors have no junction. The bulk resistivity decreases with increasing illumination, allowing more photocurrent to flow. This resistive characteristic gives bulk-effect photoconductors an unique quality of signal current from the detector can be varied over a wide range by adjusting the applied voltage. To clearly make this distinction, Excelitas refers to its photoconductors as photoconductive cells or simply as Photocell. The photocell is thin-film device made by depositing a layer of a photoconductive material on a ceramic substrate.

• Low noise and distortion
• Easy to use in DC or AC circuits
• Responsive to very low light levels (moonlight) and very high light levels (sunlight)
• Wide dynamic range
• Suitable for 120/240VAC applications