The Lms49PD-05-RW-PA from LED Microsensor NT is a Photodiode with Wavelength Range 3.55 to 4.50 µm, Dark Current 17 to 25 mA, Responsivity/Photosensitivity 0.85 to 1 A/W, Active Area Diameter 0.5 mm. More details for Lms49PD-05-RW-PA can be seen below.