Slotted Optical Switch OPB857Z Features:  Three wires for economy in electrical connection  Water resistant, no optical openings in upper plastic body  Internal narrow aperture for high motion resolution Description: OPB857Z is a non-contact optical switch with a NPN silicon phototransistor and infrared Light Emitting Diode (LED) which are mounted on opposite sides of a 0.150” ( 3.8 mm) wide slot. The device upper body is a single molded piece IR transparent plastic that is tinted to reduce ambient light interference and offers water resistance as well as dirt/dust protection. The phototransistor has a internal aperture that offers good optical resolution. LED emissions are near-infrared (850 – 940nm). Applications:  Non-contact object sensing  Assembly line automation  Machine automation  Equipment security  Machine safety Wire Color Description Red Collector Brown Anode Black Common RoHS Notes: (1) Wire is 26AWG, UL Rated PVC insulation. (2) Ideal torque for bolt or screw 0,45 to 0,68 Nm ( 4 to 6 Lb-in ). ® (3) When using a thread lock compound, ND Industries ”ND Vibra-Tite Formula 3” will avoid stress cracking plastic. (4) Plastic is soluble in chlorinated hydrocarbons and ketones. Methanol or isopropanol are recommended as cleaning agents. 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 B 11/2016 Page 1 © TT electronics plc Slotted Optical Switch OPB857Z Electrical Specifications Absolute Maximum Ratings Storage & Operating Temperature Range -40°C to +80° C Input Diode ( 5) Input Diode Power Dissipation 100 mW ( 5) Input Diode Forward D.C. Current, T = 25°C 50 mA A Input Diode Peak Forward Pulse Current, T = 25°C (1µs pulse width, 300pps) 1 A A Input Diode Reverse D.C. Voltage, T = 25°C 2 V A Phototransistor ( 5) Power Dissipation 100 mW Collector - Emitter Voltage 30V Emitter - Collector Voltage 5.0V Electrical Characteristics ( T = 25°C ) A SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS Input Diode (see OP140 or OP240 for additional information) V Forward Voltage - - 1.70 V I = 20 mA F F I Reverse Current - - 100 µA V = 2 V R R Output Phototransistor (see OP550 for additional information) V Collector-Emitter Breakdown Voltage 30 - - V I = 1 mA, E = 0 (BR)CEO C E V Emitter-Collector Breakdown Voltage 5.0 - - V I = 100 µA, E = 0 (BR)ECO E E I Collector Dark Current - - 100 nA V = 10 V, I = 0, E = 0 CEO CE F E Coupled V Collector-Emitter Saturation Voltage - - 0.40 V I = 1.50 mA, I = 20 mA CE(SAT) C F I On-State Collector Current 1.5 - 17.0 mA V = 10 V, I = 20 mA C(ON) 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. Issue B 11/2016 Page 2 © TT electronics plc Slotted Optical Switch OPB857Z Performance OP OPB8 B85 57 7Z Z - Fla - Flag g Ne Nexx tt t to o E LEmitter D OP OPB8 B81 57 7Z Z - Fla - Flag g Ne Nexx t t t to o S PTe Xns or 1.2 1.2 Top to Bottom Top to Bottom 1.0 1.0 0.8 0.8 Left to Right Right to Left Left to Right Right to Left 0.6 0.6 0.4 0.4 0.2 0.2 0.0 0.0 0.00 0.05 0.10 0.15 0.20 0.25 0.00 0.05 0.10 0.15 0.20 0.25 Distance (inches) Distance (inches) OPB857Z - Flag in Middle of Slot 1.2 Top to Bottom 1.0 Top to Bottom 0 0.8 Left to Right Right to Left LED Side 0.6 Emitter Left to Right Right to Left 0.4 Sensor 0.2 0 Width PTX Side 0.0 0.00 0.05 0.10 0.15 0.20 0.25 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 B 11/2016 Page 3 © TT electronics plc Typical I Response Typical I Response C(ON) C(ON) Typical I Response C(ON)