The S12497 from Hamamatsu Photonics is a Photodiode with Wavelength Range 400 to 1100 nm, Capacitance 750 to 1150 pF, Dark Current 50 to 200 pA, Responsivity/Photosensitivity 0.32 to 0.57 A/W, Rise Time 15 µs. More details for S12497 can be seen below.