The G10899-003K from Hamamatsu Photonics is a Photodiode with Wavelength Range 0.5 to 1.7 µm, Capacitance 10 to 15 pF, Dark Current 0.3 to 1.5 nA, Responsivity/Photosensitivity 0.15 to 1 A/W, Active Area Diameter 0.3 mm. More details for G10899-003K can be seen below.