Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z OPB820 Features:  Non-contact switching  Four standard aperture sizes for high resolution  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). Applications:  Non-contact object sensing  Assembly line automation  Machine automation  Equipment safety  Machine safety Ordering Information Part LED Peak Slot Width / Aperture Lead Length / Number Wavelength Sensor Depth Emitter/Sensor Spacing OPB820 0.04"/ 0.04" OPB820S10 0.04"/ 0.01" 0.425" / 0.275" OPB820S5 0.04"/ 0.005" OPB820S3 0.080" / 0.04"/ 0.003" 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" General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 1

Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z Electrical Specifications Absolute Maximum Ratings (T =25°C unless otherwise noted) A Storage and Operating Temperature -40°C to +85°C Lead Soldering Temperature (1/16 inch [1.6 mm] from case for 5 seconds with soldering iron) (1) 260°C Input Diode Continuous Forward Current 50 mA Peak Forward Current (1µs pulse width, 300 pps) 1 A Reverse Voltage 2 V Power Dissipation (2) 100 mW Output Phototransistor Collector-Emitter Voltage 30 V Emitter-Collector Voltage 5 V Power Dissipation (2) 100 mW Notes: (1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (2) For OPB820, derate linearly 1.67 mW/° C above 25° C. For OPB821Z, derate linearly 1.82 mW/° C above 25° C. (3) Methanol or isopropanol are recommended as cleaning agents. Plastic housing is soluble in chlorinated hydrocarbons and ketones. Electrical Characteristics (T = 25°C unless otherwise noted) A SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS Input Diode (See OP245 for additional information) V Forward Voltage - - 1.7 V I = 20 mA F F I Reverse Current - - 100 µA V = 2 V R R Output Phototransistor (See OP555 for additional information) V Collector-Emitter Breakdown Voltage 30 - - V I = 100 mA (BR)CEO C V Emitter-Collector Breakdown Voltage 5 - - V I = 100 µA (BR)ECO E I Collector-Emitter Dark Current - - 100 nA V = 10 V, I = 0, I = 0 CEO CE F E Coupled Collector-Emitter Saturation Voltage OPB820, OPB821Z - - 0.4 V I = 250 µA, I = 20 mA C F V OPB820S3, OPB821S3Z - - 0.4 V I = 40 µA, I = 20 mA CE(SAT) C F OPB820S5, OPB821S5Z - - 0.4 V I = 150 µA, I = 20 mA C F OPB820S10, OPB821S10Z - - 0.4 V I = 250 µA, I = 20 mA C F On-State Collector Current OPB820, OPB821Z 500 - - µA V = 5 V, I = 20 mA CE F I OPB820S3, OPB821S3Z 60 - - µA V = 5 V, I = 20 mA C(ON) CE F OPB820S5, OPB821S5Z 300 - - µA V = 5 V, I = 20 mA CE F OPB820S10, OPB821S10Z 400 - - µA V = 5 V, I = 20 mA CE F General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 2

Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z Performance OPB820 - Flag Next to Emitter OPB820 - Flag next to Sensor 1.20 1.20 Top to Bottom Top to Bottom 1.00 1.00 e e s s n0.80 n 0.80 o Left to Right Right to Left o p p s s e e R R N) N) C(O0.60 C(O 0.60 d I d I e e Left to Right Right to Left aliz aliz m m or0.40 or 0.40 N N 0.20 0.20 0.00 0.00 0.00 0.05 0.10 0.15 0.20 0.25 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) Displacement Distance (inches) OPB820 - Flag in Middle of Slot 1.20 Top to 1.00 Top to Bottom 0 e s n0.80 o p s e Left to Right Right to Left R N) C(O0.60 ed I Emitter z ali m Left to Right Right to Left or0.40 N Sensor 0.20 0 Width 0.00 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 3

Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z Performance OPB820S3 - Flag Next to Emitter OPB820S3 - Flat Next to Sensor 1.20 1.20 Top to Bottom Top to Bottom 1.00 1.00 A) A) m0.80 m 0.80 e ( e ( s s n n po Left to Right Right to Left po Left to Right Right to Left s s Re0.60 Re 0.60 ON) ON) al IC( al IC( pic0.40 pic 0.40 y y T T 0.20 0.20 0.00 0.00 0.00 0.05 0.10 0.15 0.20 0.25 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) Displacement Distance (inches) OPB820S3 - Flag in Middle of Slot 1.20 Top to Bottom 1.00 Top to Bottom 0 A) m 0.80 e ( s n po Left to Right Right to Left s Re 0.60 N) O C( al I Emitter pic 0.40 Ty Left to Right Right to Left 0.20 Sensor 0 Width 0.00 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 4

Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z Performance OPB820S5 - Flag Next to Emitter OPB820S5 - Flag Next to Sensor 1.20 1.20 Top to Top to 1.00 1.00 A) A) m0.80 m0.80 e ( e ( s s n n o Left to Right Right to Left o Left to Right Right to Left p p s s Re0.60 Re0.60 N) N) O O C( C( al I al I c c pi0.40 pi0.40 y y T T 0.20 0.20 0.00 0.00 0.00 0.05 0.10 0.15 0.20 0.25 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) Displacement Distance (inches) OPB820S5 - Flag in Middle Slot 1.20 Top to 1.00 Top to Bottom 0 A) m0.80 e ( s n po Left to Right Right to Left s Re0.60 N) O al IC( Emitter c pi0.40 Left to Right Right to Left y T 0.20 Sensor 0 Width 0.00 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 5

Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z Performance OPB820S10 - Flag Next to Emitter OPB820S10 - Flag Next to Sensor 1.20 1.20 Top to Top to Bottom 1.00 1.00 mA) 0.80 mA)0.80 se ( e ( n s o Left to Right Right to Left n p o Left to Right Right to Left s p Re 0.60 es0.60 ON) RN) cal IC( al IC(O ypi 0.40 pic0.40 T Ty 0.20 0.20 0.00 0.00 0.00 0.05 0.10 0.15 0.20 0.25 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) Displacement Distance (inches) OPB820S10 - Flag in Middle of Slot 1.20 Top to 1.00 Top to Bottom 0 A) m0.80 e ( s on Left to Right Right to Left p s e0.60 R N) O C( cal I Emitter pi0.40 y T Left to Right Right to Left 0.20 Sensor 0 Width 0.00 0.00 0.05 0.10 0.15 0.20 0.25 Displacement Distance (inches) General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 6

Slotted Optical Switch OPB820, OPB821Z, OPB821S_Z Packaging Package Drawing Package Drawing OPB820 OPB821 24.0 [609] [ MILLIMETERS] DIMENSIONS ARE IN: INCHES 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 OPTEK’s molded plastics. Pin # Description Pin # Description Color/Pin # Description Color/Pin # Description 4 Cathode 2 Collector Green-3 Cathode White-2 Collector 3 Anode 1 Emitter Orange-4 Anode Blue-1 Emitter 4 2 3 2 3 1 4 1 General Note TT Electronics | Optek Technology, Inc. TT Electronics reserves the right to make changes in product specification without 1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200 notice or liability. All information is subject to TT Electronics’ own data and is www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. © TT electronics plc Issue C 11/2016 Page 7

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: T T Electronics: OPB821S3Z OPB821S5Z OPB821S10Z OPB820 OPB820S3 OPB820S10 OPB821Z OPB820S5