| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 10 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 4-XFLGA | 
                                                                            
                                            | Surface Mount | YES | 
                                                                            
                                            | Operating Temperature | -40°C~125°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Published | 2017 | 
                                                                            
                                            | Series | RedRock™ 121 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | Technology | Magnetoresistive | 
                                                                            
                                            | Voltage - Supply | 2.7V~3.6V | 
                                                                            
                                            | Function | Omnipolar Switch | 
                                                                            
                                            | Current - Supply (Max) | 700nA | 
                                                                            
                                            | Body Length or Diameter | 1.4mm | 
                                                                            
                                            | Body Breadth | 1.4 mm | 
                                                                            
                                            | Output Type | Digital | 
                                                                            
                                            | Termination Type | SOLDER | 
                                                                            
                                            | Polarization | North Pole, South Pole | 
                                                                            
                                            | Current - Output (Max) | 10mA | 
                                                                            
                                            | Test Condition | 25°C | 
                                                                            
                                            | Sensing Range | 3mT Trip, 2mT Release | 
                                                                            
                                            | Hysteresis | 0.5 mT | 
                                                                            
                                            | Output Range | 0.30-2.70V | 
                                                                            
                                            | Magnetic Field Range-Min | 1.8 mT | 
                                                                            
                                            | Magnetic Field Range-Max | 3.8 mT | 
                                                                            
                                            | Body Height | 0.436mm | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                RR121-1B13-312 Overview
ldeally, the magnetic switch should be packaged in the Tape & Reel (TR) for protection against damage. For safety reasons, the magnetic switches are packaged in 4-XFLGA packages. As a maximum current, magnetic switches can supply 700nA. In order to be output, magnetic switches should have a maximum current of 10mA. 
RR121-1B13-312 Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 3  (168 Hours)
Supply Voltage: 2.7V~3.6V
Operating Temperature: -40°C~125°C
Mounting Type: Surface Mount
Output Type: Digital
Maximum Supply Current: 700nA
RR121-1B13-312 Applications
There are a lot of Coto Technology RR121-1B13-312 Magnetic Switches applications. 
- Tachometer
- Rotary applications
- Factory automation
- Motor and fan control
- Brushless DC (direct current) motor commutation
- RPM measurement
- Security and military applications
- Magnetic encoders
- Industrial process control
- Dyno testing