| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            6 Weeks | 
                                        
                                                                            
                                            | Mount | 
                                            Through Hole | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Through Hole | 
                                        
                                                                            
                                            | Package / Case | 
                                            7-SSIP, 6 Leads, Exposed Pad, Formed Leads | 
                                        
                                                                            
                                            | Number of Pins | 
                                            6 | 
                                        
                                                                            
                                            | Supplier Device Package | 
                                            eSIP-7F | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~150°C TJ | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            2012 | 
                                        
                                                                            
                                            | Series | 
                                            TOPSwitch®-HX | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Max Operating Temperature | 
                                            150°C | 
                                        
                                                                            
                                            | Min Operating Temperature | 
                                            -40°C | 
                                        
                                                                            
                                            | Power (Watts) | 
                                            105W | 
                                        
                                                                            
                                            | Max Power Dissipation | 
                                            105W | 
                                        
                                                                            
                                            | Topology | 
                                            Flyback | 
                                        
                                                                            
                                            | Frequency - Switching | 
                                            66kHz 132kHz | 
                                        
                                                                            
                                            | Internal Switch(s) | 
                                            Yes | 
                                        
                                                                            
                                            | Fault Protection | 
                                            Current Limiting, Over Temperature, Over Voltage | 
                                        
                                                                            
                                            | Duty Cycle | 
                                            78% | 
                                        
                                                                            
                                            | Output Isolation | 
                                            Isolated | 
                                        
                                                                            
                                            | Voltage - Breakdown | 
                                            700V | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                                                    
                            
                         
                                                TOP257LG Overview
7-SSIP, 6 Leads, Exposed Pad, Formed Leads is the package in which the ac to dc converter is embedded.The AC/DC power converter Tube is available for this product.There is a AC/DC converter mounted in the way of Through Hole .It is necessary to operate the ac dc converter at a temperature of -40°C~150°C TJ °C in order for it to perform properly.There is 66kHz 132kHz  switching frequency.On this ac/dc converter, there are 6  pins.Through Hole is a suitable mounting point for the ac dc converters.The AC to DC converter belongs to the manufacturer family of TOPSwitch?-HX .As AC to DC power converter of the package, eSIP-7F is provided.Keeping the 150°C value at its maximum ensures the AC to DC power converter runs smoothly.A minimum working temperature of -40°C  is required for this isolated switch.
TOP257LG Features
Packaged with 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Switching Frequency at 66kHz 132kHz
With 6 pins
TOP257LG Applications
There are a lot of Power Integrations TOP257LG AC DC Converters applications. 
- LED lights
 - Humidifier
 - Laptops
 - Portable audio
 - Adapter/Charger for  Cordless Phones
 - Handheld/Battery-Powered Systems
 - Tablets
 - AC?DC USB chargers for Cell Phones
 - Adapters for Handheld Electronics
 - Cleaners