Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Features:  Phototransistor output  Unfocused for sensing diffuse surface  Low cost plastic housing  Enhanced signal to noise ratio  Reduced ambient light sensitivity Description: OPB608 reflective switches consist of an infrared emitting device (LED or VCSEL) and a NPN silicon phototransistor mounted “side- by-side” on a parallel axis in a black opaque plastic housing. All OPB608’s (except OPB608R) have an emitting device and a phototransistor that are encapsulated in a visible filtering epoxy. The phototransistor responds to radiation from the emitter only when a reflective object passes within its field of view. The phototransistor has enhanced low current roll-off to improve the contrast ratio and immunity to background irradiance. LED versions are designed for near-field applications. The VCSEL version is designed for longer distances. OPB608A, OPB608B and OPB608C devices are designed for applications with reflective distances between 0.050” (1.270 mm) and 0.375” (9.525 mm). OPB608V is designed for applications with reflective distances between 0.050” (1.270 mm) and 1.200” (30.480 mm). All of these are designed for light patterns not visible to the human eye. By utilizing the night enhancement function of a camera, the near infrared light pattern can be seen. This allows a user to see the pattern shining on the reflective object. OPB608R is designed for applications with reflective distances between 0.050” (1.270 mm) and 0.300” (7.620 mm). It is designed for light patterns visible to the human eye. The efficiency of this sensor is lower for optical wavelengths in the visible range, thus reducing the distance that can be used. Reflective distances are dependent upon the drive current for the light emitting device, the wavelength of the light source, and the type of reflective material; therefore, each application should be checked for the ability to meet each requirement. Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for more information. Ordering Information Applications: Part LED Peak Reflection Distance Lead  Non-contact reflective object sensor Number Wavelength Sensor Inch (mm) Length  Assembly line automation OPB608A  Machine automation 890 nm OPB608B  Machine safety See Graph 0.18" OPB608C Rbe Transistor  End of travel sensor on Page 4 (Min) OPB608R 650 nm  Door sensor OPB608V 850 nm Additional laser safety information can be found on the Optek website. See application #221. Classification is not marked on the device due to space limitations. See package outline for centerline of optical radiance. Operating devices beyond maximum rating may cause devices to exceed rated classification 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 D 01/2017 Page 1 © TT electronics plc Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Absolute Maximum Ratings (T =25°C unless otherwise noted) A Storage Temperature Range -40° C to +85° C Operating Temperature Range OPB608 A, B, C & R -40° C to +85° C OPB608V 0° C to +70° C (1) Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron] 260° C Total Power Dissipation 100 mW OPB608A, OPB608B, OPB608C (Infrared-LED — 890 nm) Forward DC Current 50 mA Peak Forward Current (1 μs pulse width, 300 pps) 3 A Reverse DC Voltage 2 V OPB608R (Visible Red-LED — 650 nm) Forward DC Current 50 mA Reverse DC Voltage 5 V OPB608V (Infrared-VCSEL — 850 nm) Forward DC Current 12 mA Reverse DC Voltage 5 V Phototransistor Collector-Emitter Voltage 30 V Emitter Reverse Current 10 mA Collector DC Current 25 mA Notes: (1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (2) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and keytones. Pin # LED Pin # Transistor 4 Cathode 1 Collector 3 Anode 2 Emitter 4 1 3 2 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 D 01/2017 Page 2 © TT electronics plc Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Electrical Characteristics (T = 25°C unless otherwise noted) A SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS Infrared-LED (880 nm) (See OP240 for additional information) V Forward Voltage - - 1.7 V I = 20 mA F F I Reverse Current - - 100 µA V = 2 V R R Infrared-LED (650 nm) V Forward Voltage - 1.9 2.5 V I = 20 mA F F V Reverse Voltage 5 - - V I = 10 µA R R Infrared VCSEL (850 nm) (See OPV330 for additional information) V Forward Voltage - - 2.2 V I = 7 mA F F I Reverse Current - - 30 nA V = 5 V R R I Threshold Current 2 - 5.5 mA - TH Θ Beam Divergence - 12 - Deg. I = 12 mA F Phototransistor (See OP705 for additional information) 2 V Collector Emitter Breakdown Voltage 30 - - V I = 100 µA, E = 0 µW/cm (BR)CEO C E 2 V Emitter Collector Breakdown Voltage 0.4 - - V I = 100 µA, E = 0 µW/cm (BR)ECO E E V Saturation Voltage - - .40 V I = 100 µA, I = 20 mA, d = 0.053” CE(SAT) C F 2 I Collector Emitter Dark Current - - 100 nA V = 5 V, E = ≤ .10 µW/cm , I = 0 CEO CE E F Combined On-State Collector Current OPB608A 2 - - V = 5 V, I = 20 mA, d = 0.053 inch (1.35 CE F OPB608B 1 - 4 (1)(2) mm) OPB608C 0.5 - - I mA C(ON) OPB608R 1 - 6 V = 5 V, I = 10 mA, d = 0.053 inch (1.35 CE F OPB608V 5 - - (1)(2) mm) Off-State Collector Current No reflective surface, V = 5 V CE I LED - - 100 I = 20 mA C(OFF) F nA VCSEL - - 100 I = 10 mA F Notes: (1) Distance from the front of the lens to reflective surface. (2) Measured using Eastman Kodak gray card. The white side of the card is used as a 90% diffuse reflective surface. Reference Eastman Kodak catalog #E152 7795 (3) All parameters are tested using pulse techniques. 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 D 01/2017 Page 3 © TT electronics plc Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Kodak 90% Card Normalized Output vs Collector Current vs Diode Forward Current Object Distance 5 100.00 Vce = 5 Volts Standard Test Conditions Normalized with OPB608 Kodak 90% at 0.05" 5 Normalized for OPB608 @ 20mA Test ing Condit ion: VCE = 5 Volt s 4 OPB608R 10.00 I = 20mA (OPB608 F and OPB608R) OPB608V IF = 10mA (OPB608V) 4 OPB608 OPB608 3 1.00 OPB608R OPB608V 3 2 0.10 2 0.01 1 1 0.00 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 10 20 30 40 50 Object Distance (inches) I - Forward Current - mA F Rise and Fall vs Load Resistance Collector Current vs Ambient Temp. 180 140% OPB608R - Tr OPB608R - Tf 160 OPB608 - Tr 120% OPB608 - Tf OPB608V - Tr 140 OPB608V - Tf 100% 10% Dut y Cycle 120 1 ms Pulse Widt h Vce = 5 Volt s 80% OPB608R I = 20 mA (OPB608 and 100 F OPB608R) OPB608 I = 10 mA (OPB608V) F OPB608V Dist ance = 0.057" 80 60% 60 Normalized at 25°C for each 40% product type Vce = 5 Volts 40 I = 20 mA (OPB608 F and OPB608R) 20% I = 10 mA (OPB608V) F 20 Distance = 0.053" 0% 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 0 1000 2000 3000 4000 5000 RL - Load resistance - Ohms Ta - Ambient Temperature - °C 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 D 01/2017 Page 4 © TT electronics plc Normalized Output Tr,Tf - Switching Speed - µsec Normalized Collector Current (%) I - Typical Collector Current - mA C(ON) Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Reflective Response Reflective Response Reflective Response Reflective Response 5000 6000 4500 5000 4000 3500 4000 3000 2500 3000 2000 2000 1500 Inkjet Green Inkjet 20% Black 1000 Inkjet Yellow 1000 Laserjet 20% Black 500 Inkjet Cyan Laser 20% Black 0 0 Inkjet Magenta OPB608V Copier 20% Black OPB608V OPB608 OPB608 OPB608R OPB608R Reflective Response Reflective Response Reflective Response Reflective Response 1200 3000 1000 2500 800 2000 600 1500 400 1000 200 500 Thermal Paper Silver Tape 0 0 Black Thermal Paper OPB608 White Plastic OPB608V OPB608R OPB608 Reflective Response OPB608R Relative Response Reflective Response Relative Response 5000 100 4500 90 4000 80 3500 70 3000 60 2500 2000 50 1500 40 1000 30 500 White 90% 20 0 Laserjet Black Gray 18% 10 OPB608V Inkjet Black OPB608 0 OPB608R Copier Black OPB608V OPB608 OPB608R 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 D 01/2017 Page 5 © TT electronics plc