| Parameters | 
                                                                                                            
                                            | Package / Case | Rectangular, Wire Leads | 
                                                                            
                                            | Surface Mount | NO | 
                                                                            
                                            | Mounting Feature | FLANGE MOUNT | 
                                                                            
                                            | Actuator Material | Magnet, South Pole | 
                                                                            
                                            | Operating Temperature | -40°C~100°C TA | 
                                                                            
                                            | Published | 2015 | 
                                                                            
                                            | Series | 55140 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Termination | Wire Leads | 
                                                                            
                                            | Type | Hall Effect Switch | 
                                                                            
                                            | Subcategory | Other Sensors/Transducers | 
                                                                            
                                            | Technology | CMOS | 
                                                                            
                                            | Voltage - Supply | 3.8V~24V | 
                                                                            
                                            | Reach Compliance Code | unknown | 
                                                                            
                                            | Frequency | 10kHz | 
                                                                            
                                            | Termination Style | Wire Leads | 
                                                                            
                                            | Body Length or Diameter | 23mm | 
                                                                            
                                            | Body Breadth | 14 mm | 
                                                                            
                                            | Output Type | Digital | 
                                                                            
                                            | Power Supplies | 3.8/24V | 
                                                                            
                                            | Body Height | 6mm | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                55140-2L-04-A Overview
Modules of magnetic position sensors are packaged in Rectangular, Wire Leads packages. 
55140-2L-04-A Features
Package / Case: Rectangular, Wire Leads
55140 Series
Operating Temperature: -40°C~100°C TA
Supply Voltage: 3.8V~24V
Frequency: 10kHz
55140-2L-04-A Applications
There are a lot of Littelfuse Inc. 55140-2L-04-A Magnetic Position Sensors Modules applications. 
- Rollers
- Reed switch replacement
- Speed and RPM (revolutions per minute) sensing
- Control of magnetic apparatus
- Encoders
- Magnetic encoders
- Antitheft systems
- CNC machine tools
- Fan speed measurement
- Speedometers