Speed Sensor Hall-Effect HA-D 90

This sensor is designed for incremental measurement of rotational speed (e.g. camshaft*, crankshaft or wheel speed), but it is not a “true power-on” sensor.

Due to the rotation of a ferromagnetic target wheel in front of the HA-D 90, the magnetic field is modulated at the place of the Hall probe.

The main feature and benefit of this sensor is a very good detection of the falling edge, due to a differential measuring method. This sensor is a combination of a high quality production part and robust design with a small housing.

*: see Installation Notes



  • Max. frequency: ≤10 kHz
  • Air gap: 0.4 to 1.0 mm
  • Bore diameter: 11.8 mm
  • Max. vibration: 1,200 m/s² at 10 Hz to 2 kHz
  • Weight w/o wire: 12 g




Max. frequency

≤10 kHz

Target wheel air gap AG

0.4 to 1.0 mm

Temperature range

-40 to 150°C

Output circuit

Open collector for 1 kOhm

Output type

Active high

External magnetic fields

≤50 mT

Max. vibration

1,200 m/s2 at 10 Hz to 2 kHz

Technical Specifications

Mechanical Data

Weight w/o wire

12 g


Screw 1 x M6

Bore diameter

11.8 mm

Installation depth L2

30 mm

Tightening torque

6 Nm

Electrical Data

Power supply

5 to 18 V

Current IS

20 mA


Accuracy repeatability of the falling edge of tooth

< 1.0 % (≤ 6 kHz)
< 1.5 % (≤ 10 kHz)

Signal output

0.52 V to < US


Target wheel diameter D

162.34 mm

Thickness t

12.5 mm

Width of teeth b1

3.8 mm

Width of gap b2

4.7 mm

Width of sync. gap b3

20.79 mm

Depth of teeth h

3.4 mm

Number of teeth


Connectors and Wires



Mating connector


Pin 1


Pin 2


Pin 3


Pin 4


Pin 5


Various motorsport and automotive connectors available on request.



Wire size

AWG 24

Wire length L

15 to 100 cm

Please specify the required wire length with your order.

Installation Notes

The HA-D 90 is no true-power-on sensor. It needs the falling edge of two teeth for correct working. After a time of 0.68 s without rotation of the detected wheel it needs again the falling edge of two teeth.

The HA-D 90 can be connected directly to most control units and data logging systems

Please specify the angle between the mounting and the target wheel.

Please avoid abrupt temperature changes.

For mounting please use only the integrated plug.

If a wheel with different dimensions is used (see Environment), the technical function has to be tested individually.

Please ensure that the environmental conditions do not exceed the sensor specifications.

Please find further application hints in the offer drawing at our homepage.

Safety Note

The sensor is not intended to be used for safety related applications without appropriate measures for signal validation in the application system.

Ordering Information

Speed Sensor Hall-Effect HA-D 90

Order number: F02U.V00.334-01

Legal Restrictions

Due to embargo restrictions, sale of this product in Russia, Belarus, Iran, Syria, and North Korea is prohibited.