| PartNumber | OPB660T | OPB665N | OPB660N |
| Description | Optical Switches, Transmissive, Photo IC Output Photo transistor Slotted Opt Switch | Optical Switches, Transmissive, Photo IC Output Photologic Slotted Opt Switch | Optical Sensors Optical Switches, Transmissive, Phototransistor Output Photo transistor Slotted Opt Switch |
| Manufacturer | TT Electronics | TT Electronics | - |
| Product Category | Optical Switches, Transmissive, Photo IC Output | Optical Switches, Transmissive, Photo IC Output | - |
| RoHS | Y | Y | - |
| Packaging | Tube | Tube | - |
| Brand | Optek / TT Electronics | Optek / TT Electronics | - |
| Product Type | Optical Switches, Transmissive, Photo IC Output | Optical Switches, Transmissive, Photo IC Output | - |
| Factory Pack Quantity | 200 | 200 | - |
| Subcategory | Optical Switches | Optical Switches | - |
| Unit Weight | 0.035274 oz | 0.035274 oz | - |