The FD150 from Nortus Optronic GmbH is a Photodiode with Wavelength Range 1300 to 1550 nm, Capacitance 1.5 to 2 pF, Dark Current 0.5 to 3 nA, Responsivity/Photosensitivity 0.8 to 0.95 A/W, Active Area Diameter 150 µm. More details for FD150 can be seen below.
