The S5344 from Hamamatsu Photonics is a Photodiode with Wavelength Range 200 to 1000 nm, Capacitance 120 pF, Dark Current 1 to 30 nA, Responsivity/Photosensitivity 0.42 A/W, Active Area Diameter 3 mm (Photosensitive). More details for S5344 can be seen below.