Non-contact switching Single or double apertures for high resolution OPB826 Choice of slot widths Choice of side-by-side or over/under dual channels Choice of electrical outputs OPB822 Each OPB822 and OPB826 slotted switch consists of two infrared emitting diodes and two NPN silicon phototransistors mounted on opposite sides of a 0.090” (2.29 mm) wide slot (OPB822) or a 0.100” (2.54 mm) wide slot (OPB826) . OPB822 uses an side-by-side mounting configuration, while OPB826 uses an over/under mounting configuration. OPB822S has 0.01” by 0.04” (0.25 mm x 1.02 mm) apertures in front of both phototransistors while the OPB822SD has the aperture in front of both phototransistors and both emitters. The OPB826S has 0.04” by 0.04” (1.02 mm x 1.02 mm) apertures in front of both phototransistors while the OPB826SD has the aperture in front of both phototransistors and both emitters. Dual channels enable direction of travel sensing, with the low-cost plastic housing reduces possible interference from ambient light and provides protection from dust and dirt. Phototransistor switching occurs when an opaque object passes through the device slot. For information on encoder design, see Application Bulletin 203 at: Custom electrical, wire and cabling and connectors are available. Contact your local LEDSlotApertureLead representative or OPTEK for more information. PartPeakWidth /Emitter/Length /NumberWavelengthSensorDepthSensorSpacingNone /OPB822S Encoders DualDual0.09" /0.01"0.35" / Non-contact object sensing 935 nmTransistor0.30”0.01" /0.30"OPB822SD Assembly line automation 0.01" Machine automation OPB826SNA / 0.04" Equipment security DualDual0.10" /0.20" /0.04" / Machine safety 890 nmTransistor0.42”0.74"OPB826SD0.04"RoHS
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