The KPDE0301M51 from Dexerials Corporation is a Photodiode with Wavelength Range 900 to 1700 nm, Capacitance 4 to 6 pF (Terminal), Dark Current 1 nA, Responsivity/Photosensitivity 0.9 A/W, Active Area Diameter 300 µm. More details for KPDE0301M51 can be seen below.