| PartNumber | OPB831W51Z | OPB831L51 | OPB831W55 |
| Description | Optical Switches, Transmissive, Phototransistor Output Optical Switch | Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch | Optical Switches, Transmissive, Phototransistor Output Non-RoHS/Non Standard - Consult Factory - NC/NR |
| Manufacturer | TT Electronics | TT Electronics | TT Electronics |
| Product Category | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output |
| RoHS | Y | Y | - |
| Slot Width | 3.18 mm | 3.18 mm | 3.18 mm |
| Aperture Width | 1.27 mm | 1.27 mm | 1.27 mm |
| Collector Emitter Voltage VCEO Max | 30 V | 30 V | 30 V |
| If Forward Current | 20 mA | 20 mA | 50 mA |
| Mounting Style | Wire Leads | PCB Mount | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 80 C | + 85 C | + 80 C |
| Series | OPB8-W | OPB8-L | OPB8-W |
| Packaging | Bulk | Bulk | - |
| Height | 10.54 mm | 10.54 mm | 10.54 mm |
| Length | 23.75 mm | 23.75 mm | 23.75 mm |
| Output Type | Phototransistor | Phototransistor | Phototransistor |
| Sensing Distance | 3.18 mm | 3.18 mm | - |
| Sensing Method | Transmissive, Slotted | Transmissive, Slotted | Transmissive, Slotted |
| Wavelength | 880 nm | 890 nm | - |
| Width | 12.95 mm | 12.95 mm | 12.95 mm |
| Brand | Optek / TT Electronics | Optek / TT Electronics | Optek / TT Electronics |
| Number of Channels | 1 Channel | 1 Channel | 1 Channel |
| Pd Power Dissipation | 100 mW | 100 mW | 100 mW |
| Product Type | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output |
| Factory Pack Quantity | 100 | 25 | - |
| Subcategory | Optical Switches | Optical Switches | Optical Switches |
| Vr Reverse Voltage | 2 V | 2 V | 2 V |
| Maximum Collector Current | - | - | 30 mA |