| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 10 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | TO-236-3, SC-59, SOT-23-3 | 
                                                                            
                                            | Surface Mount | YES | 
                                                                            
                                            | Operating Temperature | -40°C~125°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Series | RedRock™ 121 | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Technology | Magnetoresistive | 
                                                                            
                                            | Voltage - Supply | 2.7V~3.6V | 
                                                                            
                                            | Function | Omnipolar Switch | 
                                                                            
                                            | Current - Supply (Max) | 700nA | 
                                                                            
                                            | Body Length or Diameter | 2.9mm | 
                                                                            
                                            | Body Breadth | 1.6 mm | 
                                                                            
                                            | Output Type | Digital | 
                                                                            
                                            | Termination Type | SOLDER | 
                                                                            
                                            | Polarization | North Pole, South Pole | 
                                                                            
                                            | Current - Output (Max) | 10mA | 
                                                                            
                                            | Test Condition | 25°C | 
                                                                            
                                            | Sensing Range | 7mT Trip, 5mT Release | 
                                                                            
                                            | Hysteresis | 2 mT | 
                                                                            
                                            | Output Range | 0.30-2.70V | 
                                                                            
                                            | Magnetic Field Range-Min | 5 mT | 
                                                                            
                                            | Magnetic Field Range-Max | 7 mT | 
                                                                            
                                            | Body Height | 1.2mm | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                RR121-1F23-311 Overview
In order to prevent damage, the magnetic switch is packaged in the Tape & Reel (TR). For safety reasons, the magnetic switches have been packaged in TO-236-3, SC-59, SOT-23-3 packages. For good performance, the magnetic switches can supply 700nA. In order to be output, magnetic switches should have a maximum current of 10mA. 
RR121-1F23-311 Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1  (Unlimited)
Supply Voltage: 2.7V~3.6V
Operating Temperature: -40°C~125°C
Mounting Type: Surface Mount
Output Type: Digital
Maximum Supply Current: 700nA
RR121-1F23-311 Applications
There are a lot of Coto Technology RR121-1F23-311 Magnetic Switches applications. 
- Tachometer
- RPM measurement
- Conducting objects
- Speed and direction of gears
- Generator set
- Robotics control
- Clutch/brake position sensor
- White goods
- Position tracking
- Detection of ferromagnetic