| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 16 Weeks | 
                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 8-SOIC (0.154, 3.90mm Width), 7 Leads | 
                                                                            
                                            | Operating Temperature | -40°C~85°C TA | 
                                                                            
                                            | Packaging | Tube | 
                                                                            
                                            | Published | 2012 | 
                                                                            
                                            | JESD-609 Code | e3 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 2  (1 Year) | 
                                                                            
                                            | Number of Terminations | 7 | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Terminal Finish | Matte Tin (Sn) | 
                                                                            
                                            | HTS Code | 8542.39.00.01 | 
                                                                            
                                            | Max Power Dissipation | 23W | 
                                                                            
                                            | Terminal Position | DUAL | 
                                                                            
                                            | Terminal Form | GULL WING | 
                                                                            
                                            | Peak Reflow Temperature (Cel) | 260 | 
                                                                            
                                            | Number of Functions | 1 | 
                                                                            
                                            | Terminal Pitch | 1.27mm | 
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 40 | 
                                                                            
                                            | JESD-30 Code | R-PDSO-G7 | 
                                                                            
                                            | Input Voltage-Nom | 12V | 
                                                                            
                                            | Analog IC - Other Type | SWITCHING REGULATOR | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 8V~20V | 
                                                                            
                                            | Output Power | 19W | 
                                                                            
                                            | Input Voltage (Min) | 8V | 
                                                                            
                                            | Topology | Flyback | 
                                                                            
                                            | Control Mode | CURRENT-MODE | 
                                                                            
                                            | Frequency - Switching | Up to 150kHz | 
                                                                            
                                            | Input Voltage (Max) | 20V | 
                                                                            
                                            | Control Technique | RESONANT CONTROL | 
                                                                            
                                            | Switcher Configuration | SINGLE | 
                                                                            
                                            | Internal Switch(s) | Yes | 
                                                                            
                                            | Fault Protection | Over Load, Over Temperature, Over Voltage | 
                                                                            
                                            | Output Isolation | Isolated | 
                                                                            
                                            | Voltage - Breakdown | 700V | 
                                                                            
                                            | Voltage - Start Up | 11.8V | 
                                                                            
                                            | Height Seated (Max) | 1.75mm | 
                                                                            
                                            | Length | 4.9mm | 
                                                                            
                                            | Width | 3.9mm | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                            
                                            | Lead Free | Lead Free | 
                                                                                                    
                            
                         
                                                HF01B04DS-LF Overview
8-SOIC (0.154, 3.90mm Width), 7 Leads is the package in which the ac to dc converter is embedded.There is a AC/DC power converter of Tube available.This AC/DC converter is mounted in the way of Surface Mount .The ac dc converter should be operated at a temperature of -40°C~85°C TA °C to deliver its optimal performance.In this AC DC converter, the analog IC type is SWITCHING REGULATOR .When the switching frequency reaches Up to 150kHz , the process is complete.A range of 8V~20V supply voltages (Vcc/Vdd) can be used.There are a total of 7 terminations in it.The ac dc converters is suitable for mounting by Surface Mount .On the basis of a unique technique, it is possible to ensure an input voltage with the maximum value of 20V .There is 19W  output power generated by a coverter.
HF01B04DS-LF Features
Packaged with 8-SOIC (0.154, 3.90mm Width), 7 Leads
Switching Frequency at Up to 150kHz
HF01B04DS-LF Applications
There are a lot of Monolithic Power Systems Inc. HF01B04DS-LF AC DC Converters applications. 
- Cleaners
- Adaptors for DSCs
- Replacements for bulky plug-in transformers
- Set -Top Box (STB) Power Supply
- Battery chargers for media tablets
- Set-top boxes
- Vacuum Cleaner
- AC/DC Adaptors/Chargers for E-books
- Cellular phone chargers
- Dimmers