The G12182-205K from Hamamatsu Photonics is a Photodiode with Wavelength Range 0.9 to 2.05 µm, Capacitance 60 to 150 pF, Dark Current 1.5 to 15 nA, Responsivity/Photosensitivity 1 to 1.2 A/W, Active Area Diameter 0.5 mm. More details for G12182-205K can be seen below.