43-890 12.5 mm Dia. Borofloat33 Protective Flat Window; t=1.75 mm Uncoated

The 43-890 is a circular, flat window with a diameter of 12.5 mm and a thickness of 1.75 mm. This window is made of Borofloat33, a type of glass known for its high chemical resistance, thermal shock resistance, and low thermal expansion coefficient. These properties make it an ideal choice for applications that require a robust and reliable optical window.

The window is uncoated, meaning it does not have any additional layers applied to its surface. This can be beneficial in certain applications where a specific coating may interfere with the desired optical properties. However, it's important to note that uncoated windows can be more susceptible to environmental factors such as dust, moisture, and scratches.

This window is sourced from Edmund Optics, a leading supplier of optical components. According to the vendor, the window is currently in stock, ensuring quick and efficient delivery. The product's webpage also provides additional information and resources, including technical specifications, datasheets, and application notes.