| OPB100-EZ | 
                                            TT Electronics/Optek Technology | 
                                            SENSR OPTO TRANSISTOR 304.8MM SNAP-IN | 
                                        
                                                                            
                                            | OPB100-SZ | 
                                            TT Electronics/Optek Technology | 
                                            SENSR OPTO TRANSISTOR 304.8MM SNAP-IN | 
                                        
                                                                            
                                            | OPB100Z | 
                                            TT Electronics/Optek Technology | 
                                            SENSR OPTO TRANSISTOR 304.8MM SNAP-IN | 
                                        
                                                                            
                                            | OPB120A | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTD OPTICAL PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB120B | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTD OPTICAL PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB121A | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTD OPTICAL PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB121B | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTD OPTICAL PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB122A | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTD OPTICAL PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB122B | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTED OPTIC PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB123A | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTED OPTIC PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB123B | 
                                            TT Electronics/Optek Technology | 
                                            SWITCH SLOTTED OPTIC PHOTOLOGIC | 
                                        
                                                                            
                                            | OPB12801 | 
                                            TT Electronics/Optek Technology | 
                                            OPB733TR ON BOARD W/SMD COMP |