The S12053-05 from Hamamatsu Photonics is a Photodiode with Wavelength Range 200 to 1000 nm, Capacitance 5 pF, Dark Current 0.2 to 5 nA, Responsivity/Photosensitivity 0.42 A/W, Active Area Diameter 0.5 mm (Photosensitive). More details for S12053-05 can be seen below.
