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| PartNumber | OPB853A2 | OPB853A3 | OPB853A1 |
| Description | Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch | Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch | Optical Sensors Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch |
| Manufacturer | TT Electronics | TT Electronics | - |
| Product Category | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output | - |
| RoHS | Y | Y | - |
| Slot Width | 3.18 mm | 3.18 mm | - |
| Aperture Width | 1.27 mm | 1.27 mm | - |
| Collector Emitter Voltage VCEO Max | 30 V | 30 V | - |
| If Forward Current | 20 mA | 20 mA | - |
| Mounting Style | PCB Mount | PCB Mount | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Series | OPB85xA | OPB85xA | - |
| Packaging | Bulk | Bulk | - |
| Height | 11.05 mm | 11.05 mm | - |
| Length | 24.89 mm | 24.89 mm | - |
| Output Type | Photodarlington | Photodarlington | - |
| Sensing Distance | 3.18 mm | 3.18 mm | - |
| Sensing Method | Transmissive, Slotted | Transmissive, Slotted | - |
| Wavelength | 890 nm | 890 nm | - |
| Width | 6.6 mm | 6.6 mm | - |
| Brand | Optek / TT Electronics | Optek / TT Electronics | - |
| Number of Channels | 1 Channel | 1 Channel | - |
| Pd Power Dissipation | 100 mW | 100 mW | - |
| Product Type | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output | - |
| Factory Pack Quantity | 25 | 200 | - |
| Subcategory | Optical Switches | Optical Switches | - |
| Vr Reverse Voltage | 2 V | 2 V | - |
| Vf Forward Voltage | - | 1.7 V | - |