Active ABS
Wheel-Speed Sensors

Overview

These are wheel-speed sensors with semiconductor sensing elements to respond to the advances in ABS. The sensors provide stable output throughout, from low to high speed. Another product type that can sense reverse rotation is also available upon request.

Features

Specifications

Item Unit Characteristics Remarks
Minimum Standard Maximum
Ambient temperature deg.C -40 RT 115  
Power supply voltage V 7.5 12 20 Load resistance
=115Ω
Frequency Hz 1 - 2500  
Output current Hi mA 11.2 14 16.8  
Lo mA 5.6 7 8.4  
Duty ratio % 40 50 60  
Direction of rotation
sensing method
Counterclockwise rotation μs 76 90 104 Reverse rotation
sensing type only
Clockwise rotation μs 153 180 204
0 speed μs 1232 1440 1656

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