The P13894-011CN from Hamamatsu Photonics is an InAsSb Infrared Photodiode that has a spectral range of up to 11 μm. It has a photosensitive area of 1 x 1 mm with photosensitivity of 2 mA/W and detectivity of 7.0 × 107 cm·Hz1/2/W. This photodiode has a maximum rise time of 10 ns and a maximum noise equivalent power of 2.5 x 10-9 W/Hz1/2. It has a shunt resistance of 2 kΩ and a terminal capacitance of 0.6 pF. This photodiode is available in a compact surface mount ceramic package and is ideal for radiation thermometers and gas detection (CH4, CO2, CO, NH3, O3, etc.) applications.