The G12183-103K from Hamamatsu Photonics is a Photodiode with Wavelength Range 0.9 to 2.57 µm, Capacitance 44 to 100 pF, Dark Current 0.12 to 1.2 µA, Responsivity/Photosensitivity 1 to 1.3 A/W, Active Area Diameter 0.3 mm. More details for G12183-103K can be seen below.