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Product Bulletin OPB680 April 1998
Slotted Optical Flag Switch
Types OPB680, OPB680-20
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Features • Phototransistor output • Mechanical switch replacement • Printed circuit board mounting • Enhanced signal to noise ratio • Lever force options Description
The OPB680 consists of an NPN phototransistor and an infrared emitting diode in a molded plastic housing. The phototransistor has an enhanced low current roll-off which improves contrast ratio and immunity to background irradiance. A lever arm actuated flag interrupts the light beam, switching the output between states that can readily drive logic gates. The lever can be actuated by a passing paper sheet without damaging the paper edge.
OPB680 Datasheet
