| Parameters | 
                                
                                                                                                            
                                            | Max Output Current | 
                                            1mA | 
                                        
                                                                            
                                            | Operating Supply Current | 
                                            2mA | 
                                        
                                                                            
                                            | Polarization | 
                                            North Pole, South Pole | 
                                        
                                                                            
                                            | Test Condition | 
                                            -40°C ~ 85°C | 
                                        
                                                                            
                                            | Sensing Range | 
                                            ±5.5mT Trip, ±1mT Release | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Factory Lead Time | 
                                            8 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            SOT-23W | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C TA | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Published | 
                                            2005 | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Type | 
                                            Omnipolar Switch | 
                                        
                                                                            
                                            | HTS Code | 
                                            8542.39.00.01 | 
                                        
                                                                            
                                            | Technology | 
                                            Hall Effect | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            2.5V~3.5V | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Function | 
                                            Omnipolar Switch | 
                                        
                                                                            
                                            | Current - Supply (Max) | 
                                            2mA | 
                                        
                                                                            
                                            | Output Type | 
                                            Open Drain | 
                                        
                                                                                                    
                            
                         
                                                A3212ELHLX-T Overview
The magnetic switch is packaged in the Tape & Reel (TR) to prevent damage. The magnetic switches are put into SOT-23W packages for safety protection. The magnetic switches can supply a maximum current of 2mA for good performance. In operation, these switches are capable of outputting 1mA as the maximum current. 
A3212ELHLX-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1  (Unlimited)
Supply Voltage: 2.5V~3.5V
Operating Temperature: -40°C~85°C TA
Mounting Type: Surface Mount
Output Type: Open Drain
Maximum Supply Current: 2mA
A3212ELHLX-T Applications
There are a lot of Allegro MicroSystems A3212ELHLX-T Magnetic Switches applications. 
- Robotics control
 - Identification of magnetic patterns in cards and banknotes
 - Rotary applications
 - Speed and RPM (revolutions per minute) sensing
 - Reading of magnetic data storage media
 - Tachometers/counters
 - Industrial controls
 - Factory automation
 - Motor assemblies
 - Lighting actuation slave sensor