| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | TO-236-3, SC-59, SOT-23-3 | 
                                                                            
                                            | Supplier Device Package | SOT-23-3 | 
                                                                            
                                            | Operating Temperature | -40°C~115°C TA | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Published | 2008 | 
                                                                            
                                            | Series | EW | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Max Operating Temperature | 115°C | 
                                                                            
                                            | Min Operating Temperature | -40°C | 
                                                                            
                                            | Technology | Hall Effect | 
                                                                            
                                            | Voltage - Supply | 3V~26.4V | 
                                                                            
                                            | Function | Unipolar Switch | 
                                                                            
                                            | Current - Supply (Max) | 6mA | 
                                                                            
                                            | Output Type | Open Collector | 
                                                                            
                                            | Max Output Current | 10mA | 
                                                                            
                                            | Polarity | South Pole | 
                                                                            
                                            | Polarization | South Pole | 
                                                                            
                                            | Current - Output (Max) | 10mA | 
                                                                            
                                            | Max Supply Current | 6mA | 
                                                                            
                                            | Sensing Method | Hall Effect | 
                                                                            
                                            | Test Condition | 25°C | 
                                                                            
                                            | Sensing Range | 10mT Trip, -2.5mT Release | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                EW450B Overview
A protective Tape & Reel (TR) package surrounds the magnetic switch to protect it from damage. In order to prevent damage to the magnetic switches, they are packaged in TO-236-3, SC-59, SOT-23-3 packages. In order to provide good performance, magnetic switches can supply 6mA as the maximum current. In their operating mode, these switches can output a maximum current of 10mA. If magnetic switches are to be output, the maximum current should be 10mA. There is a limit to 6mA current that can be supplied by these switches. The magnetic switches can operate at 115°C. This magnetic switch is only effective at temperatures greater than -40°C. 
EW450B Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1  (Unlimited)
Supply Voltage: 3V~26.4V
Operating Temperature: -40°C~115°C TA
Mounting Type: Surface Mount
Output Type: Open Collector
Maximum Supply Current: 6mA
EW450B Applications
There are a lot of AKM Semiconductor Inc. EW450B Magnetic Switches applications. 
- White goods
- Reed switch replacement
- Wiper home/end position sensor
- Spindles
- Brushless DC (direct current) motor commutation
- Convertible roof position
- Rotary applications
- Robotics control
- Antitheft systems
- Speedometers