| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            8 Weeks | 
                                        
                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            SOT-23W | 
                                        
                                                                            
                                            | Number of Pins | 
                                            3 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~125°C TA | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Published | 
                                            2013 | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e3 | 
                                        
                                                                            
                                            | Pbfree Code | 
                                            yes | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            3 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Matte Tin (Sn) | 
                                        
                                                                            
                                            | Additional Feature | 
                                            OPEN COLLECTOR OUTPUT | 
                                        
                                                                            
                                            | Subcategory | 
                                            Other Sensors/Transducers | 
                                        
                                                                            
                                            | Technology | 
                                            Hall Effect | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            3V~24V | 
                                        
                                                                            
                                            | Function | 
                                            Latch | 
                                        
                                                                            
                                            | Body Length or Diameter | 
                                            2.975mm | 
                                        
                                                                            
                                            | Body Breadth | 
                                            1.91 mm | 
                                        
                                                                            
                                            | Output Type | 
                                            Open Drain | 
                                        
                                                                            
                                            | Max Output Current | 
                                            25mA | 
                                        
                                                                            
                                            | Power Supplies | 
                                            4.2/24V | 
                                        
                                                                            
                                            | Termination Type | 
                                            SOLDER | 
                                        
                                                                            
                                            | Operating Supply Current | 
                                            8mA | 
                                        
                                                                            
                                            | Polarization | 
                                            South Pole | 
                                        
                                                                            
                                            | Output Current | 
                                            25mA | 
                                        
                                                                            
                                            | Max Supply Current | 
                                            8mA | 
                                        
                                                                            
                                            | Test Condition | 
                                            25°C | 
                                        
                                                                            
                                            | Sensing Range | 
                                            5mT Trip, -5mT Release | 
                                        
                                                                            
                                            | Hysteresis | 
                                            100 mT | 
                                        
                                                                            
                                            | Output Range | 
                                            500mV | 
                                        
                                                                            
                                            | Output Circuit Type | 
                                            SINGLE-ENDED | 
                                        
                                                                            
                                            | Magnetic Field Range-Min | 
                                            -5 mT | 
                                        
                                                                            
                                            | Magnetic Field Range-Max | 
                                            5 mT | 
                                        
                                                                            
                                            | Body Height | 
                                            1mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                                                    
                            
                         
                                                A3290KLHLT-T Overview
An integrated magnetic switch is packaged within the Tape & Reel (TR) in order to protect it against damage. For safety reasons, the magnetic switches have been packaged in SOT-23W packages. Switches of this type are capable of delivering 25mA as the maximum current when they are in use. There is a maximum current that can be supplied by these switches of 8mA. To make the switches work, they have 3 pins. There are 3 terminations in it. There should be 25mA current output by the switches in general. 
A3290KLHLT-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1  (Unlimited)
Supply Voltage: 3V~24V
Operating Temperature: -40°C~125°C TA
Mounting Type: Surface Mount
3 Pins
3 Terminations
Output Type: Open Drain
A3290KLHLT-T Applications
There are a lot of Allegro MicroSystems A3290KLHLT-T Magnetic Switches applications. 
- Electric window lift
 - Speed and RPM (revolutions per minute) sensing
 - Counter pickup
 - Steering position
 - Fan speed measurement
 - Pumps
 - Open/close sensor for LCD screens/doors/lids/trunks
 - Convertible roof position
 - Spindles
 - Detection of ferromagnetic