Slotted Optical Switch OPB820, OPB821Z, OPB821S Z OPB820 Features: Non-contact switching Four standard aperture sizes for high resolution Product Photo Here Low profile 0.080 (2.03 mm) wide, 0.250 (8.89 mm) deep slot Choice of PCBoard or wire mountings OPB821Z Description: Each OPB820 and OPB821Z device consists of an infrared emitting diode (LED, 890 nm center wavelength) and a NPN silicon phototransistor mounted in a low-cost black plastic housing on opposite sides of an 0.080 (2.03 mm) wide slot. Each device in this series has a 0.040 (1.02 mm) wide aperture located in front of the infrared diode. Phototransistor switching occurs when an opaque object passes through the slot. Devices are offered with 0.275 (6.96 mm) lead spacing for PCBoard mounting (OPB820) or 24 (609 mm) 26 AWG wire leads (OPB821Z). Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for more information. Applications: Ordering Information Non-contact object sensing Part LED Peak Slot Width / Aperture Lead Length / Assembly line automation Number Wavelength Sensor Depth Emitter/Sensor Spacing Machine automation OPB820 0.04 / 0.04 Equipment safety Machine safety OPB820S10 0.04 / 0.01 0.425 / 0.275 OPB820S5 0.04 / 0.005 OPB820S3 0.04 / 0.003 0.080 / 890 nm Transistor 0.255 OPB821Z 0.040 / 0.040 OPB821S10Z 0.040 / 0.010 24 /26 AWG Wire OPB821S5Z 0.040 / 0.005 OPB821S3Z 0.040 / 0.003 RoHS OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. 1645 Wallace Drive, Carrollton, Texas 75006 Issue C 09/2011 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors optekinc.com www.optekinc.com Page 1 of 7 Slotted Optical Switch OPB820, OPB821Z, OPB821S Z Package Drawing Package Drawing OPB820 OPB821 24.0 609 MILLIMETERS DIMENSIONS ARE IN: INCHES Pin Description Pin Description Color/Pin Description Color/Pin Description Green-3 Cathode White-2 Collector 4 Cathode 2 Collector Orange-4 Anode Blue-1 Emitter 3 Anode 1 Emitter 4 2 3 2 1 3 4 1 CONTAINS POLYSULFONE To avoid stress cracking, we suggest using ND Industries Vibra-Tite for thread-locking. Vibra-Tite evaporates fast without causing structural failure in OPTEKs molded plastics. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue C 09/2011 OPTEK Technology Inc. 1645 Wallace Drive, Carrollton, Texas 75006 Page 2 of 7 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors optekinc.com www.optekinc.com