| Parameters | 
                                                                                                                        
                                                | Mfr | onsemi | 
                                                                                    
                                                | Series | FSFR | 
                                                                                    
                                                | Package | Tube | 
                                                                                    
                                                | Product Status | Obsolete | 
                                                                                    
                                                | Output Isolation | Isolated | 
                                                                                    
                                                | Internal Switch(s) | Yes | 
                                                                                    
                                                | Voltage - Breakdown | 500V | 
                                                                                    
                                                | Topology | Half-Bridge | 
                                                                                    
                                                | Voltage - Start Up | 14.5 V | 
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 11.3V ~ 25V | 
                                                                                    
                                                | Duty Cycle | 50% | 
                                                                                    
                                                | Frequency - Switching | Up to 300kHz | 
                                                                                    
                                                | Power (Watts) | 260 W | 
                                                                                    
                                                | Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage | 
                                                                                    
                                                | Control Features | EN, Frequency Control | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 130°C (TJ) | 
                                                                                    
                                                | Package / Case | 10-SIP Module, 9 Leads, Formed Leads | 
                                                                                    
                                                | Supplier Device Package | 9-SIP (L forming) | 
                                                                                    
                                                | Mounting Type | Through Hole | 
                                                                                    
                                                | Base Product Number | FSFR1800 | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.39.0001 | 
                                                                                    
                                                | Standard Package | 19 | 
                                                                                                                
                                
                             
                                                Converter Offline Half-Bridge Topology Up to 300kHz 9-SIP (L forming)