The S12859-122 from Hamamatsu Photonics is a Photodiode with Wavelength Range 340 to 1100 nm, Capacitance 20 to 40 pF, Dark Current 3 to 30 pA, Responsivity/Photosensitivity 380 to 670 mA/W, Rise Time 6.5 µs. More details for S12859-122 can be seen below.