The G6849 from Hamamatsu Photonics is a Photodiode with Wavelength Range 0.9 to 1.7 µm, Capacitance 100 to 160 pF, Dark Current 0.5 to 5 nA, Responsivity/Photosensitivity 0.8 to 0.95 A/W, Active Area Diameter 2 mm. More details for G6849 can be seen below.