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Passive Wheel Speed Sensor

Passive ABS Wheel Speed Sensor designed to help to detect the rotational speed of the vehicle's wheel and transmitting this information to the ABS control module. The sensor operates without the need for an external power supply, using electromagnetic induction to generate an AC voltage that varies in frequency with the wheel speed. This information is used to prevent the wheels from locking and determine when the wheels are spinning, taking appropriate control action to maintain the vehicle’s stability and steering responses. These sensors are tested and validated to meet the stringent automotive requirements.
  • Measurement of rotational speed
  • Large operating air gaps
  • High speed frequency operating range
  • Rugged construction
  • ROHS compliant

6 – 20 VDC

up to 2.5 KHz operating frequency

-40°C to 150°C

Air gap 0.4 to 2.04 mm

Ideal for EV applications

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Part Number
Description
Datasheet
Technology Variable reluctance
Resistance at Room Temperature @ 25°C 1750Ω+350Ω/-175Ω (2100Ω-1575Ω)
Resistance at Extreme Temperature 1.4H±0.260H1100Ω(-40°C) 3400Ω(220°C)
Inductance at 1kHz, 1 Vrms series 1.4H±0.260H
Signal Voltage @ 100Hz ≥350mV
Frequency 100Hz
Air Gap 0.7±0.02mm

Specifications subject to change without notice.