Product Overview
The OPB708, OPB740, OPB740WZ, and associated series of reflective object sensors are designed for non-contact object detection. Each sensor comprises an infrared or visible red Light Emitting Diode (LED) paired with an NPN silicon phototransistor or photodarlington. These devices are housed in a black plastic enclosure with converging optical axes, providing a focused field of view for enhanced sensitivity and depth of field. The OPB7_ _WZ series features UL-approved wiring and various lens options for dust protection or improved target resolution. They are suitable for applications in assembly line and machine automation, safety systems, end-of-travel sensing, and door sensing.
Product Attributes
- Brand: TT electronics | OPTEK Technology
- Materials: Black plastic housing, Polysulfone (some models)
- Certifications: UL approved wire (OPB7_ _WZ series)
- RoHS Compliant
Technical Specifications
| Part Number | LED Peak Wavelength | Sensor Type | Reflection Distance (Typ.) | Lead Length / Wire Type | LED Color | Lens Configuration |
|---|---|---|---|---|---|---|
| OPB708 | 935 nm | Transistor | 0.15" [3.81 mm] | 0.150" Minimum | Infrared | D - No windows |
| OPB709 (Obsolete) | - | Darlington | - | - | - | - |
| OPB740 | 890 nm | Transistor | - | - | Infrared | A - No windows |
| OPB741 (Obsolete) | - | Darlington | - | - | - | - |
| OPB742 | - | Transistor | - | - | Infrared | C - Offset windows |
| OPB743 | - | Transistor | - | - | Infrared | A - No windows |
| OPB744 | - | Transistor | - | - | Infrared | B - Blue windows |
| OPB745 | - | Darlington | - | - | Infrared | C - Offset windows |
| OPB740WZ | 890 nm | Transistor | - | 24" / 26 AWG Wire | Infrared | A - No windows |
| OPB741WZ | - | Darlington | - | 24" / 26 AWG Wire | Infrared | B - Blue windows |
| OPB742WZ | - | Transistor | - | 24" / 26 AWG Wire | Infrared | C - Offset windows |
| OPB743WZ | - | Transistor | - | 24" / 26 AWG Wire | Infrared | A - No windows |
| OPB744WZ | - | Transistor | - | 24" / 26 AWG Wire | Infrared | B - Blue windows |
| OPB745WZ | - | Darlington | - | 24" / 26 AWG Wire | Infrared | C - Offset windows |
| OPB746WZ (Obsolete) | 935 nm | Transistor | - | - | - | - |
| OPB747WZ (Obsolete) | 660 nm | - | - | - | Red Visible | - |
| OPB748WZ | 660 nm | Transistor | - | 24" / 26 AWG Wire | Red Visible | C - Offset windows |
2504101957_OPTEK-OPB708_C17499870.pdf
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