The G8931-10 from Hamamatsu Photonics is a Photodiode with Wavelength Range 0.95 to 1.7 µm, Capacitance 0.7 to 1 pF, Dark Current 90 to 140 nA, Responsivity/Photosensitivity 0.8 to 0.9 A/W, Active Area Diameter 0.1 mm (Photosensitive). More details for G8931-10 can be seen below.