The APDE-SF46A500-SI-2 from Lasermate Group is a Photodiode with Wavelength Range 400 to 1100 nm, Capacitance 1.2 pF, Dark Current 1.2 to 20 nA, Responsivity/Photosensitivity 0.37 to 0.65 A/W, Active Area Diameter 500 µm. More details for APDE-SF46A500-SI-2 can be seen below.