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| PartNumber | OPB931W51 | OPB931L55 | OPB931L51 |
| Description | Optical Switches, Transmissive, Photo IC Output Non-RoHS/Non Standard - Consult Factory - NC/NR | Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch | Optical Switches, Transmissive, Photo IC Output Slotted Opt Switch |
| Manufacturer | TT Electronics | TT Electronics | TT Electronics |
| Product Category | Optical Switches, Transmissive, Photo IC Output | Optical Switches, Transmissive, Photo IC Output | Optical Switches, Transmissive, Photo IC Output |
| Series | OPB9-W | OPB9-L | OPB9-L |
| Output Type | Open Collector, Buffer | Open Collector, Buffer | Open Collector, Buffer |
| Sensing Method | Transmissive, Slotted | Transmissive, Slotted | Transmissive, Slotted |
| Brand | Optek / TT Electronics | Optek / TT Electronics | Optek / TT Electronics |
| Product Type | Optical Switches, Transmissive, Photo IC Output | Optical Switches, Transmissive, Photo IC Output | Optical Switches, Transmissive, Photo IC Output |
| Subcategory | Optical Switches | Optical Switches | Optical Switches |
| Tradename | Photologic | Photologic | Photologic |
| RoHS | - | Y | Y |
| Slot Width | - | 3.18 mm | 3.18 mm |
| Aperture Width | - | 1.27 mm | 1.27 mm |
| If Forward Current | - | 40 mA | 40 mA |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Maximum Operating Temperature | - | + 70 C | + 70 C |
| Packaging | - | Bulk | Bulk |
| Fall Time | - | 70 ns | 70 ns |
| High Level Output Current | - | 100 uA | 100 uA |
| High Level Output Voltage | - | 2.4 V | 2.4 V |
| Low Level Output Voltage | - | 0.4 V | 0.4 V |
| Rise Time | - | 70 ns | 70 ns |
| Factory Pack Quantity | - | 25 | 100 |
| Vf Forward Voltage | - | 1.7 V | 1.7 V |
| Vr Reverse Voltage | - | 2 V | 2 V |