The OPB610 series Slotted Optical Switches consist of an infrared emitting diode and an NPN silicon phototransistor with an enhanced low current roll-off to improve contrast ratio and immunity to background irradiance. The switch consists of an infrared emitting diode and a PIN photodiode with a polysulfone housing that is opaque to visible light, but transmissive to infrared. The low tr/tf of the PIN photodiode is ideal for high-speed operation. The sensitivity to ambient radiation is minimized.
Non-contact switching
Printed circuit board mounting
Enhanced signal to noise ratio
PIN photodiode sensor for high speed (OPB611, OPB621)