OP521 phototransistor equivalent, smd silicon phototransistor.
* Non-Contact Position Sensing
* Datum detection
* Machine automation
* Optical encoders
Darker Green M.
The OP520 and OP521 are NPN silicon phototransistor mounted in miniature SMT packages. Both the OP520 and OP521 have a flat lens however, the OP520 lens is opaque to shield the device from stray light. These sensors are packaged in 1206 size chip ca.
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