Overview
The uncooled lead selenide (PbSe) sensor is a type of lead – salt infrared photoconductive sensor. Its working principle relies on the photoconductive effect of semiconductor materials, enabling the conversion of infrared radiation energy into electrical signals. The PbSe sensor demonstrates strong absorption and response within the near and mid – infrared (1.0 – 5.0μm) spectral bands.
Key Features
- The surface – mount lead selenide sensor is compact in size, offers a wide field of view, and is easy to integrate. It is well – suited for compact solutions and portable instruments.
- The lead selenide sensor operates in an uncooled mode, features a fast response, a high detection rate, and allows for customized windows.
Applications
- Infrared gas detection.
- Flame detection.
- Infrared spectrum analysis.
Technical Specifications
| Parameter | Value |
| Model | REF-X2212(H/B/C/D), SLW-E3226-T |
| Photosensitive area | 1.2x5mm |
| Response time | 20μs |
| Dark resistance | 0.2 – 2.0MΩ |
| Response wavelength range | 1 – 5μm |
| Window type | Sapphire; Narrow Band Filters |
| Working temperature | – 40 to 60°C |
| Central wavelength | Sapphire: 1 – 5μm; Narrow Band Filters: 2.7μm, 3.8μm, 4.3μm |
| Peak Responsivity | 4×104 V/W |
| Peak Normalized Detection Rate | 1×1010 cm·Hz1⁄2/W |
