| Parameters | 
                                
                                                                                                            
                                            | Duty Cycle | 
                                            78% | 
                                        
                                                                            
                                            | Output Isolation | 
                                            Isolated | 
                                        
                                                                            
                                            | Voltage - Breakdown | 
                                            700V | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                            
                                            | 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 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~150°C TJ | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            2012 | 
                                        
                                                                            
                                            | Series | 
                                            TOPSwitch®-HX | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Max Power Dissipation | 
                                            122W | 
                                        
                                                                            
                                            | Topology | 
                                            Flyback | 
                                        
                                                                            
                                            | Frequency - Switching | 
                                            66kHz 132kHz | 
                                        
                                                                            
                                            | Internal Switch(s) | 
                                            Yes | 
                                        
                                                                            
                                            | Fault Protection | 
                                            Current Limiting, Over Temperature, Over Voltage | 
                                        
                                                                                                    
                            
                         
                                                TOP258LG Overview
In the 7-SSIP, 6 Leads, Exposed Pad, Formed Leads package, the ac to dc converter is embedded.The AC/DC power converter type is Tube .This AC/DC converter is mounted in the way of Through Hole .For the ac dc converter to perform properly, it should be operated at a temperature of -40°C~150°C TJ °C.There is 66kHz 132kHz  switching frequency.There are 6  pins on this ac/dc converter.There are no problem mounting the ac dc converters by Through Hole .This AC to DC converter belongs to the TOPSwitch?-HX family of manufacturers.
TOP258LG Features
Packaged with 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Switching Frequency at 66kHz 132kHz
With 6 pins
TOP258LG Applications
There are a lot of Power Integrations TOP258LG AC DC Converters applications. 
- Standby Power Supplies
 - Standby Power Supply
 - RCC SMPS
 - Set-top boxes
 - Standby and Auxiliary Power Supplies Set Top Boxes (STB)
 - Switching AC-DC Charger
 - Standby Power Supplies 
 - Battery chargers for mobile devices with touchpad display 
 - Cleaners
 - AC?DC USB chargers for Cell Phones