The QD50-0 from OSI Optoelectronics is a Photodetector that has a responsivity of 0.47 A/W - 0.54 A/W (at 900 nm). It has an active area of 50 mm2 and active area diameter of 8 mm. This photodetector has a dark current of 15 nA - 30 nA and element gap of 0.2 mm. It has a rise time of 10 ns (at 900 nm) and noise-equivalent power (NEP) of 1.3 x 10-13 W/rt(Hz). This photodetector features a quadrant photodiode array with integrated circuitry that generates two differential signals and one sum signal.
The QD50-0 has a noise of 15 nV/√Hz and frequency response (-3 dB) of 120 kHz & 250 kHz. It has a capacitance of 125 pF and maximum reverse voltage of 30 V. This photodetector has a slew rate below 10 V/μs and an output current limit of 25 mA. It requires a DC supply voltage of 15 V and is available in a TO-8 package. This photodetector is ideal for position measurement, beam centering, targeting, and guidance system applications.
