OPB708, OPB709, OPB740, OPB745 Series Focused for maximum sensitivity Phototransistor or photodarlington output Crosstalk does not exceed specified ICEO 24” (610 mm) wire length 26 AWG wire size OPB7_ _WZ Series Each reflective object sensor in the OPB708, OPB709, OPB740 through OPB746 and OPB740WZ through OPB746WZ series consists of an infrared emitting diode and a NPN silicon phototransistor or a photodarlington. The OPB747WZ and OPB748WZ consist of a Red visible LED and a low light level rejection (RBE) NPN silicon phototransistor. The Red LED allows better contrast ratio when detecting Black marks on a White surface. All these devices are mounted side-by-side on converging optical axes in a black plastic housing focusing on a small area and depth of field. OPB7 _ _ WZ series are wired (UL approved wire) devices that offer various lens options, including no windows, blue polysulfone windows for dust protection or opaque aperture windows with offset openings for improved target resolution. On each sensor included in this data sheet, the photosensor responds to radiation only when a reflective object passes within its field of view. Custom IC(ON) current binning, special wire lengths and connectorization is available through your OPTEK rep. Non-contact reflective object sensor Assembly line automation Machine automation Machine safety End of travel sensor Door sensor Thermal Paper Mark 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. Applies to: OPB460, OPB470, OPB480, OPB490. RoHS Part Number OPB708 OPB709 OPB740 OPB741 OPB742 OPB743 OPB744 OPB745 OPB740WZ OPB741WZ OPB742WZ OPB743WZ OPB744WZ OPB745WZ OPB746WZ OPB747WZ OPB748WZ LED Peak Wavelength 935 nm Sensor Reflection Distance Inch (mm) Transistor Darlington 0.150" Minimum Transistor 890 nm Lead Length/ Wire Type Darlington Min=0.08” [2.04mm] Typ=0.15" [3.81mm] Max=0.30” [7.62mm] Transistor Darlington 935 nm 645nm RBE Transistor Transistor 24" / 26 AWG Wire OPB708, OPB709, OPB740, OPB741, OPB742, OPB743, OPB744, OPB745 [ MILLIMETERS] DIMENSIONS ARE IN: OPB740WZ, OPB741WZ, OPB742WZ, OPB743WZ, OPB744WZ, OPB745WZ, OPB746WZ, OPB747WZ, OPB748WZ OPB746WZ, OPB747WZ, OPB748WZ OPB708 OPB740 thru OPB744 OPB740WZ thru OPB744WZ OPB709, OPB745, OPB745WZ Color-PIN # LED Color-PIN # Transistor Orange-1 Anode White-4 Collector Green-2 Cathode Blue-3 Emitter INCHES Package Style Part Number Lens Configuration OPB708 D - No windows OPB709 D - No windows OPB740 A - No windows OPB740WZ A - No windows OPB741 B - Blue windows OPB741WZ B - Blue windows OPB742 C - Offset windows OPB742WZ C - Offset windows OPB743 A - No windows OPB743WZ A - No windows OPB744 B - Blue windows OPB744WZ B - Blue windows OPB745 C - Offset windows OPB745WZ C - Offset windows OPB746WZ B - Blue windows OPB747WZ C - Offset windows OPB748WZ C - Offset windows Operating and Storage Temperature Range OPB708, OP709, OPB740, OPB741, OPB742, OPB743, OPB744, OPB745 -40° C to +85° C OPB741WZ, OPB742WZ, OPB743WZ, OPB744WZ, OPB745WZ, OPB746WZ, OPB747WZ, OPB748WZ -40° C to +80° C Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron](1) 260°C Input Diode (See OP165 (935 nm), OP265 (890 nm) or OVLAS6CB8 (645 nm) for additional information) Forward DC Current 40 mA Reverse DC Voltage 2V (2) 100 mW Power Dissipation Sensor Output (See OP505 (Transistor), OP705 (RBE Transistor) or OP535 (Darlington) for additional Information) Collector-Emitter Voltage OPB708 OPB709 OPB740, OPB741, OPB742, OPB743, OPB744 OPB740WZ, OPB741WZ, OPB742WZ, OPB743WZ, OPB744WZ OPB748WZ OPB745 OPB745WZ OPB746WZ, OPB747WZ 30 V 15 V 30 V 30 V 15 V 15 V 24 V Emitter-Collector Voltage OPB708 through OPB745, OPB748 OPB746 through OPB747 5.0 V 0.4 V Power Dissipation(2) 100 mW Notes: 1. RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. 2. Derate linearly 1.33 mW° C above 25° C. 645 nm LED (See OVLAS6CB8 for generic information — for reference only) VF Forward Voltage - - 2.6 V IF = 20 mA IR Reverse Current - - 100 µA VR = 2 V 890 nm LED (See OP265 for additional information — for reference only) VF Forward Voltage - - 1.8 V IF = 40 mA IR Reverse Current - - 100 µA VR = 2 V 935 nm LED (See OP165 for additional information — for reference only) VF Forward Voltage - - 1.7 V IF = 40 mA IR Reverse Current - - 100 µA VR = 2 V Output RBE Phototransistor (See OP705 for general information — for reference only) V(BR)CEO ICEO Collector-Emitter Breakdown Voltage Collector Dark Current 24 - - V IC = 100 µA - - 100 nA VCE = 10 V, IF = 0, EE =0 Output Phototransistor (See OP505 for general information — for reference only) V(BR)CEO Collector-Emitter Breakdown Voltage 30 - - V IC = 100 µA V(BR)ECO Emitter-Collector Breakdown Voltage 5 - - V IE = 100 µA Collector Dark Current - - 100 nA VCE = 10 V, IF = 0, EE =0 ICEO Output Photodarlington (See OP535 for general information — for reference only) V(BR)CEO Collector-Emitter Breakdown Voltage 15 - - V IC = 100 µA V(BR)ECO Emitter-Collector Breakdown Voltage 5 - - V IE = 100 µA Collector-Emitter Dark Current OPB709, OPB745, OPB745WZ - - 25 µA VCE = 5 V, IF = 0, EE =0 Saturation Voltage OPB708 OPB709 - - 0.40 1.10 V IF = 40 mA, Ic = 3 µA , d = 0.15”(1)(2) 0.01 1.00 0.05 0.05 0.01 0.20 0.20 5.00 0.50 0.01 0.01 - 3.00 2.50 2.50 0.70 2.00 2.00 26.0 2.50 0.70 0.70 - - 10.0 10.0 1.0 20.0 20.0 25.0 1.0 1.0 1.0 ICEO Coupled VCE(SAT) IC(ON)(1)(2) ICX(3) On-State Collector Current OPB708 OPB709 OPB740, OPB740WZ OPB741, OPB741W Z OPB742, OPB742WZ OPB743, OPB743WZ OPB744, OPB744WZ OPB745, OPB745WZ OPB746WZ OPB747WZ OPB748WZ Crosstalk OPB708, OPB709, OPB740, OPB740WZ OPB741, OPB741WZ OPB742, OPB742WZ OPB743, OPB743WZ OPB744, OPB744WZ OPB745, OPB745WZ OPB746WZ OPB747WZ OPB748WZ mA VCE = 5 V, IF = 40mA , d = 0.15” (3.810 mm) µA VCC = 5 V, IF = 40mA Notes: 1. The distance from the assembly face to the reflective surface is “d”. 2. Reflective surface is Eastman Kodak (Catalog #190 3061) neutral white test card with 90% diffuse reflectance as a reflecting surface. 3. Crosstalk is the photocurrent measured with current to the input diode, no reflective surface and no ambient light (E E = 0). LED Forward Voltage vs Forward Current vs Temperature Transistor Output vs Distance OPB708 - Output vs Distance 1.50 1.40 Normalized at 0.150" Kodak 90% 1.40 Kodak 90% Kodak 19% Copier Paper Avery Label Retro Material 1.00 e g 1.30 ta l o V d r a 1.20 w r o F l a c i p 1.10 y T 0.80 0.60 0.40 -40° C -20° C 0° C 20° C 40° C 1.00 0.20 60° C 80° C 0.00 0.00 0.90 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 0 1.00 5 10 15 Distance (inches) Transistor Output vs Forward Current vs 2.50 Normalized Collector Current at 20mA and 20°C -40° C -20° C 0° C 20° C 40° C 60° C 80° C 2.00 1.50 1.00 0.50 0.00 0.00 20 25 30 Forward Current (mA) OPB708 - OutputTemperature vs Forward Current vs Temp Normalized Output Normalized Output (volts) 1.20 5.00 10.00 15.00 20.00 25.00 Forward Current (mA) 30.00 35.00 40.00 35 40 LED Forward Voltage vs Forward Current vs Temperature Darlington OPB709 - Output Output vs Distance 1.40 1.50 Normalized at 0.150" Kodak 90% 1.40 1.00 Typical Forward Voltage Kodak 90% Kodak 19% Copier Paper Avery Label Retro Material 0.80 0.60 0.40 1.30 1.20 -40° C 1.10 -20° C 0° C 20° C 40° C 1.00 0.20 60° C 80° C 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 0.90 0 5 10 Distance (inches) 15 Darlington Output vs Forward Current vs Temperature 2.50 Normalized Collector Current at 20mA and 20°C -40° C -20° C 0° C 20° C 40° C 60° C 80° C 2.00 1.50 1.00 0.50 0.00 0.00 5.00 20 25 Forw ard Current (m A) OPB709 - Output vs Forward Current vs Temp Normalized Output Normalized Output (volts) 1.20 10.00 15.00 20.00 25.00 Forward Current (mA) 30.00 35.00 40.00 30 35 40