| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 4 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 8-SOIC (0.154, 3.90mm Width), 7 Leads | 
                                                                            
                                            | Operating Temperature | -40°C~125°C TJ | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | JESD-609 Code | e3 | 
                                                                            
                                            | Pbfree Code | yes | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Terminal Finish | Tin (Sn) | 
                                                                            
                                            | Analog IC - Other Type | SWITCHING CONTROLLER | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 8.8V~35V | 
                                                                            
                                            | Control Features | EN, Soft Start | 
                                                                            
                                            | Topology | Flyback | 
                                                                            
                                            | Frequency - Switching | 65kHz | 
                                                                            
                                            | Internal Switch(s) | No | 
                                                                            
                                            | Fault Protection | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage, Short Circuit | 
                                                                            
                                            | Duty Cycle | 80% | 
                                                                            
                                            | Output Isolation | Isolated | 
                                                                            
                                            | Voltage - Start Up | 12V | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                NCP1239LD65R2G Overview
There is a ac to dc converter embedded in package 8-SOIC (0.154, 3.90mm Width), 7 Leads .It is available in Tape & Reel (TR)  AC/DC power converter.There is a AC/DC converter mounted in the way of Surface Mount .It is recommended that the ac dc converter be operated at a temperature of -40°C~125°C TJ °C in order to achieve its full performance.The AC DC converter uses a type SWITCHING CONTROLLER analog integrated circuit.The switching frequency reaches 65kHz .This AC/DC converter is designed for use within the range of 8.8V~35V  supply voltage (Vcc/Vdd).
NCP1239LD65R2G Features
Packaged with 8-SOIC (0.154, 3.90mm Width), 7 Leads
Switching Frequency at 65kHz
NCP1239LD65R2G Applications
There are a lot of ON Semiconductor NCP1239LD65R2G AC DC Converters applications. 
- Appliances
- Wall switches 
- AC/DC Adaptors/Chargers for Cordless Phone
- ATX/BTX Auxiliary Power
- AC--DC Adapter
- DVD players
- Networking
- Battery chargers for mobile devices with touchpad display 
- Standby and Auxiliary Power Supplies Set Top Boxes (STB)
- Lighting controls