The QS3-L is a discrete pyroelectric sensor designed with a metallic coating, offering a low noise level for precise measurements. This sensor is part of a versatile family of products that cater to various needs, ensuring a broad spectral response ranging from 0.1 to 1000 µm. Its design is optimized for easy integration, making it an ideal choice for systems requiring compact and efficient components.

With its TO5 package, the QS3-L sensor is compact and lightweight, measuring just 9.1 mm in diameter and 6.4 mm in depth, and weighing a mere 0.001 kg. This makes it highly suitable for applications where space and weight are critical factors. The sensor's aperture diameter of 3 mm and its MT absorber contribute to its high performance and reliability in various environments.

The QS3-L pyroelectric sensor is engineered to provide a maximum average power of 50 mW, with a current responsivity of 0.5 μA/W and a thermal frequency of 0.8 Hz. Its temperature coefficient is 0.2 %/°C, ensuring stable performance across a range of temperatures. This sensor is a part of a product line that includes options for different spectral ranges and power levels, allowing users to select the best fit for their specific requirements.