The G12182-220K from Hamamatsu Photonics is a Photodiode with Wavelength Range 0.9 to 2.05 µm, Capacitance 850 to 2000 pF, Dark Current 25 to 250 nA, Responsivity/Photosensitivity 1 to 1.2 A/W, Active Area Diameter 2 mm. More details for G12182-220K can be seen below.