Slotted Optical Switch OPB852A1-3 OPB853A1-3 Features:  Inexpensive opaque plastic housing  Choice of transistor (OPB852) or photodarlington (OPB853) output  0.125” (3.18 mm) slot width  0.290” (7.37 mm) lead spacing  Apertured for high resolution Description: Slotted optical switches in the OPB852, and OPB853 series consist of an infrared emitting diode and a NPN silicon phototransistor or photodarlington, mounted on opposite sides of a 0.125” (3.175 mm) wide slot. The OPB852A, OPB852B and OPB852C have phototransistor output, while the OPB853A, OPB853B and OPB853C have photodarlington output. On each of these devices, the emitter has a molded-in aperture of 0.050” x 0.050” (1.270 mm x 1.270 mm) and the phototransistor (OPB852) or photodarlington (OPB853) has a molded-in aperture of 0.010” x 0.050” (0.254 mm x 1.270 mm). Phototransistor or photodarlington switching occurs when an opaque object passes through the slot. Slot Aperture Lead Applications: Part LED Peak Width/ Emitter/ Length /  Non-contact interruptive object sensing Number Wavelength Sensor Depth Sensor Spacing  Assembly line automation OPB852A1  Machine automation OPB852A2 Transistor  Equipment security OPB852A3 0.120" / 0.425" /  Machine safety 890 nm 0.05" / 0.01" 0.315” 0.290" OPB853A1 OPB853A2 Darlington OPB853A3 OPB852 OPB853 1 3 1 3 2 4 2 4 Pin # Description 1 Anode [ MILLIMETERS] 2 Cathode DIMENSIONS ARE IN: INCHES 3 Collector RoHS 4 Emitter 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. Issue A 11/2016 Page 1 © TT electronics plc Slotted Optical Switch OPB852A1-3, OPB853A1-3 Electrical Specifications Absolute Maximum Ratings (T =25°C unless otherwise noted) A Storage & Operating Temperature Range -40°C to +85° C (1) Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron] 260° C Input Diode Forward DC Current 40 mA Peak Forward Current (1 μs pulse width, 300 pps) 3 A Reverse DC Voltage 2 V (2) Power Dissipation 100 mW Output Phototransistor Collector-Emitter Voltage 30 V Emitter-Collector Voltage 5 V (2) Power Dissipation 100 mW Electrical Characteristics (T = 25°C unless otherwise noted) A SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS Input Diode (see OP140 for additional information—OPB852A_, OP245 for additional information—OPB853A) V Forward Voltage - - 1.7 V I = 20 mA F F I Reverse Current - - 100 µA V = 2 V R R Output Phototransistor (see OP550 for additional information—OPB852A_, OP565 for additional information—OPB853A) Collector-Emitter Breakdown Voltage V OPB852A1, OPB852A2, OPB852A3 30 - - V I = 1 mA (BR)CEO C OPB853A1, OPB853A2, OPB853A3 15 - - V I = 1 mA C V Emitter-Collector Breakdown Voltage 5 - - V I = 100 µA (BR)ECO E I Collector-Emitter Dark Current - - 100 nA V = 10 V CEO CE Combined Saturation Voltage - - OPB852A1, OPB852A2 0.4 V I = 500 µA, I = 20 mA C F V - - CE(SAT) OPB852A3 0.4 V I = 1.8 mA, I = 20 mA C F - - OPB853A1, OPB853A2, OPB853A3 1.0 V I = 1.8 mA, I = 10 mA C F On-State Collector Current OPB852A1 1.0 - - mA V = 5 V, I = 20 mA CE F OPB852A2 2.0 - - mA V = 5 V, I = 20 mA CE F I OPB852A3 4.0 - - mA V = 5 V, I = 20 mA C(ON) CE F OPB853A1 2.5 - - mA V = 1.5 V, I = 5 mA CE F OPB853A2 5.0 - - mA V = 1.5 V, I = 5 mA CE F OPB853A3 10.0 - - mA V = 1.5 V, I = 5 mA CE F Notes: (1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (2) Derate linearly 1.67 mW/° C above 25° C. (3) Methanol and isopropanol are recommended as cleaning agents. Housings are soluble in chlorinated hydrocarbons and ketones. Highly activated, General Note TT Electronics | Optek Technology, Inc. water soluble fluxes may attack housings in some situations. 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 (4) All parameters tested using pulse technique. www.ttelectronics.com | sensors@ttelectronics.com considered accurate at time of going to print. Issue A 11/2016 Page 2 © TT electronics plc Slotted Optical Switch OPB852A1-3, OPB853A1-3 Performance OPB820S10 - Flag Next to Emitter OPB852 & OP853 - Flag Next to Emitter OPB852O & OP PB820B85 S10 - Flag 3 - Fl Nex ag t tNe o Sx enso t to r Sensor 1.20 1.20 1.00 1.00 0.80 0.80 Right to Left Left to Right Top to Bottom 0.60 0.60 Right to Left Left to Right Top to Bottom 0.40 0.40 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 OPB852 & OPB853 - Flag in Middle of Slot 1.20 1.00 Top to Bottom 0 0.80 0.60 Right to Left Left to Right Top to Bottom Emitter 0.40 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. Issue A 11/2016 Page 3 © TT electronics plc Typical I Response (mA) Typical I Response (mA) C(ON) C(ON) Typical I Response (mA) C(ON)