The MTD8000M3B-T from Marktech Optoelectronics is a Silicon Phototransistor that has a peak sensitivity wavelength of 880 nm. It has a spectral sensitivity of 400 nm - 1100 nm and switching time (rise/fall) of 10 µs. This phototransistor has a collector-emitter current of 1 mA and maximum collector dark current of 100 nA. It has a collector-emitter saturation voltage of 0.2 V and an angular response of ± 80 deg. This phototransistor is available in a compact ceramic package that measures 19 (L) mm x 3 (Ø) mm and is ideal for optical switches, optical sensors & optical detectors.