Overview
The uncooled lead selenide (PbSe) sensor belongs to the lead – salt type infrared photoconductive sensor category. Its operation principle is grounded in the photoconductive effect of semiconductor materials. This allows it to convert infrared radiation energy into electrical signals. The PbSe sensor demonstrates robust absorption and response within the near and mid – infrared (1.0 – 5.0μm) spectral bands. It finds extensive application in infrared gas detection, flame detection, and high – temperature detection scenarios.
Key Features
- Housed in a TO – 5 package.
- Operates in an uncooled mode.
- Exhibits a fast response speed.
- Features a high detection rate.
- Window specifications can be customized.
Applications
- Detection of carbon emission gases.
- 13CO2 Helicobacter pylori breath detectors.
- Detection of flames and sparks in flammable and explosive environments.
- Temperature detection for industrial incinerators.
- Infrared spectrum analysis.
Technical Specifications
| Parameter | Value |
| Model | SLW-E3323(H/B/C/D) |
| 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 |
