Gear Tooth Speed Sensors GS101201 GS101202 Sensors Flange mount gear tooth speed sensor Description The GS101201-GS101202 series gear tooth speed sensors are Hall Effect devices designed for use in applications where ferrous edge detection/near zero speed sensing is needed. They provide a sinking output current. Features Typical Applications From near zero speed up to 15 kHz sensing capability Speedometers Plastic flange-mount housing Anti-lock braking systems Compatible with unregulated power supply Exercise equipment RoHS compliant CNC machine tools IP67 Typical air gap of 1.5 mm* Environmental Specifications Vibration Sinusoidal, 15 g max from 40 Hz to 2 kHz Mechanical Shock Resistance 50 g Maximum Speed Detection 15 kHz Operating Temperature -40 C to 125 C (-40 F to 257 F) Storage Temperature -40 C to 125 C (-40 F to 257 F) Ingress Protection IP67 Electrical Specifications Operating Supply Voltage 5 to 24 VDC Maximum Input Voltage 30 VDC Maximum Reverse Voltage 24 VDC Supply Current 3 mA typ., 6 mA max Output Sink Current 20 mA max Recommended Pull-Up Resistor See chart Mechanical Specifications Housing Material Glass Reinforced Thermoplastic Maximum Installation Torque Limit 5.65 Nm (50 in lb) on threads Operating Air Gap / Sensing Distance* 1.5 mm (0.06 ) * With recommended target type see drawing Sensor Orientation Not sensitive Possible O-ring size AS568A-114 (varies with application) Products Part Number Leads Connector** GS101201 Delphi Metri-Pack 150 GS101202 20 AWG x 1 m **Mates to Delphi connector 12162280 Note: An external pull-up resistor is required, the value of which is dependent on the supply voltage. The resistor should be connected between the output and Vcc. Refer to the wiring diagram for lead colors or pin numbering as applicable. www.cherryswitches.com Page 1 of 2, Last saved by 2014-11-05, Specifications subject to change without notice. Recommended External Pull-Up Resistor Volts DC 5 9 12 15 24 Ohms 1k 1.8k 2.4k 3k 3k Open Collector Sinking Block Diagram Dimensions mm (inches) GS101201 GS101202 Installation For best results, we recommend targets made from low carbon cold rolled steel. Other factors that influence sensor performance include gear tooth height and width, space between the teeth, shape of the teeth and thickness of the target. As a general guideline, consider a target with minimum parameters as shown below. Note that smaller dimensions may work, but testing for the application is required. Tooth Height Tooth Width Distance between Target Thickness Teeth 5.0 mm (.200 ) 2.5 mm (.100 ) 10 mm (.400 ) 6.35 mm (.250 ) www.cherryswitches.com Page 2 of 2, Last saved by 2014-11-05, Specifications subject to change without notice.