| Parameters | 
                                                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Max Power Dissipation | 12W | 
                                                                            
                                            | Frequency | 132kHz | 
                                                                            
                                            | Number of Channels | 1 | 
                                                                            
                                            | Topology | Flyback, Step-Down (Buck), Step-Up (Boost) | 
                                                                            
                                            | Min Input Voltage | 160V | 
                                                                            
                                            | Frequency - Switching | 140kHz | 
                                                                            
                                            | Max Input Voltage | 300V | 
                                                                            
                                            | Output Current per Channel | 1.37A | 
                                                                            
                                            | Interface IC Type | LED DISPLAY DRIVER | 
                                                                            
                                            | Internal Switch(s) | Yes | 
                                                                            
                                            | Dimming | TRIAC | 
                                                                            
                                            | Duty Cycle | 99.9% | 
                                                                            
                                            | Output Isolation | Isolated | 
                                                                            
                                            | Voltage - Breakdown | 725V | 
                                                                            
                                            | Min Input Voltage (AC) | 160V | 
                                                                            
                                            | Max Input Voltage (AC) | 300V | 
                                                                            
                                            | Height | 8.25mm | 
                                                                            
                                            | Length | 10.24mm | 
                                                                            
                                            | Width | 2.06mm | 
                                                                            
                                            | REACH SVHC | No SVHC | 
                                                                            
                                            | RoHS Status | RoHS Compliant | 
                                                                            
                                            | Factory Lead Time | 14 Weeks | 
                                                                            
                                            | Contact Plating | Lead, Tin | 
                                                                            
                                            | 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 | 2013 | 
                                                                            
                                            | Series | LYTSwitch™-4 | 
                                                                                                    
                            
                         
                                                LYT4321E Overview
This ac to dc converter is embedded in package 7-SSIP, 6 Leads, Exposed Pad, Formed Leads .In Tube case, the ac dc converter is available.The AC/DC converter is mounted in the way of Through Hole .Ideally, the ac dc converter should be operated at a temperature of -40°C~150°C TJ  degrees Celsius.There is 140kHz  switching frequency.There are 6  pins on the ac/dc converter.The ac dc converters are suitable for mounting by Through Hole .A member of the LYTSwitch?-4 manufacturer family, it has the following characteristics.AC to DC converter reaches high efficiency when operated at a frequency of 132kHz .It is possible to read the REACH SVHC standard at: No SVHC .Input voltages under 300V can be used to power the AC to DC converter.A voltage of less than 160V V can be used with the AC to DC inverter.A AC to DC power converter's input voltage (AC) should not exceed 300V .The number of channels is 1 .A LED DISPLAY DRIVER type interface IC is used in this AC to DC power supply.
LYT4321E Features
Packaged with 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Switching Frequency at 140kHz
With 6 pins
With 1 channels on it
Interface IC Type : LED DISPLAY DRIVER
LYT4321E Applications
There are a lot of Power Integrations LYT4321E AC DC Converters applications. 
- Adapters for Handheld Electronics
- Wireless System
- LED lights
- Replaces linear transformers 
- USB type-c v1.2 chargers with optional VDM
- Adaptors for DSCs
- AC--DC Adapter
- Digital cameras
- Set Top Boxes (STB)
- Standby Power Supplies