| 4N37 | Lite-On | 2,129 | Transistor Output Optocouplers PTR 100%, 1.5KV | 
                                                                    
                                        | 4N37 | Vishay Semiconductors | 841 | Transistor Output Optocouplers Phototransistor Out | 
                                                                    
                                        | 4N37 | Lite-On | 2,119 | Transistor Output Optocouplers PTR 100%, 1.5KV | 
                                                                    
                                        | 4N37-X000 | Vishay Semiconductors | 85 | Transistor Output Optocouplers Phototransistor Out Single CTR >100% | 
                                                                    
                                        | 4N37-X001 | Vishay Semiconductors | 1,958 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37-X001 | Vishay Semiconductors | 1,958 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37-X006 | Vishay Semiconductors | 0 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37-X006 | Vishay Semiconductors | 0 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37-X007 | Vishay Semiconductors | 1,778 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37-X007 | Vishay Semiconductors | 1,778 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37-X009 | Vishay Semiconductors | 1,400 | Transistor Output Optocouplers Phototransistor Out Single CTR>100% | 
                                                                    
                                        | 4N37M | onsemi / Fairchild | 870 | Transistor Output Optocouplers Optocoupler Phototransistor | 
                                                                    
                                        | 4N37M | onsemi / Fairchild | 870 | Transistor Output Optocouplers Optocoupler Phototransistor | 
                                                                    
                                        | 4N37M | Lite-On | 1,692 | Transistor Output Optocouplers PTR 100%, 1.5KV | 
                                                                    
                                        | 4N37S | Lite-On | 5,145 | Transistor Output Optocouplers PTR 100%, 1.5KV |