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Hall Effect Sensors

Vane Sensors


 
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Hall-Effect Vane Sensor BBHME301

Replacement for HKZ101, HKZ101S, HKZ121, CYHME301, and other camshaft position sensors.

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The Shaft Position Monitoring Sensor BBHME301 is designed to work in challenging environments such as manufacturing plants, automation installations, and replacement sensors for cars, trucks, and motorcycles. This device is produced in compliance with international standards, and it features: modern design, accuracy, endurance, narrow temperature drifting, smooth and clean output curve as well as non instantaneous dithering.

It is used in industrial machinery, electronic injection, automation, and several other applications. In the automotive industry it may be used as a trigger in electronic systems, in control engineering it may be used in those areas where switches/sensors must operate maintenance free under harsh environmental conditions, e.g. RPM sensors, limit switches, position sensors, speed measurements, shaft encoders, scanning of coding disks etc.

Hall Effect Sensors / Switch

Life-time Warranty
If it ever stops working, just send it
for a no-questions-asked replacement.
Average Life-time of 10 years!

BBHME301
replacement for
HKZ101, HKZ101S, HKZ121, CYHME301,
from Bosh, Siemens, Honeywell, and other manufacturers.

The BBHME301 is replacement of the similar products (HKZ101, HKZ101S, HKZ121, CYHME301) of SIEMENS and other manufacturers. They are compatible in electrical and mechanical properties but with different circuitry principle.

FEATURES

  •        Contactless switch/sensor with open collector output (40mA)

  •        Static switching/sensing

  •        High switching/sensing frequency

  •        Hermetically sealed with plastic

  •        Unaffected by dirt, light and vibration

  •        Large temperature and voltage ranges

  •        Integrated protection of overvoltage etc.

The Hall Effect vane sensor BBHME301 is a non-contact sensor/switch, which consists of a monolithic integrated Hall Effect circuit and a special magnetic circuit hermetically sealed in a plastic package. The sensor is actuated by a soft-iron vane passing through the air gap between magnet and Hall sensor.

MEASURING PRINCIPLE

The Hall Effect vane sensor consist of a Hall IC and a permanent magnet (SmCo, NdFeB disc or block), which are hermetically sealed in plastic (see the following figures). The sensor is actuated by a soft iron vane that passes through the air gap between the magnet and Hall IC. The open collector output is conductive (low) when the vane is outside the air gap (see Fig. a)), and blocks (high) when the vane moves into the air gap (see Fig. b)). The output remains high as long as the vane positions in the air gap. This is the so called static function. The output signal shape is in this case independent on the operating frequency.

Overvoltage is integrated in the circuit in order to protect against most of the voltage peaks occurring in automotive and industrial applications. The output stage has a Schmitt trigger characteristic. Most of electronic circuits can be driven directly thanks to the open collector output current of maximum 40mA. 

MECHANICAL CHARACTERISTICS

The Hall Effect vane sensor is hermetically sealed in a special plastic package, so that it can also be used under harsh environmental conditions. The package is waterproof, resistant to vibration, gasoline, oil and salt. Two tubular rivets are incorporated in the package to mount the sensor on the carrier plate. The sensor has three leads for power supply, output and ground.

ABSOLUTE MAXIMUM RATINGS

Supply Voltage

30V

Reverse Battery Voltage

– 40V

Output OFF Voltage

40V

Reverse Output Voltage

– 0.5V

Output Current (at TA=25ТАC)

40mA for 5 minutes max

Operating Temperature Range 

– 40ТАC~ +150ТАC

ELECTRICAL CHARACTERISTICS at Vcc=12V

Supply Voltage

4.5V~24V

Supply Current

9mA

Output Saturation Voltage(Sinking 20mA)

0.4V

Output Leakage Current

10uA

Output Rise Time

2uS

Output Fall Time

2uS

Output type

NPN (OC)

MECHANICAL PARAMETERS

Part number

De(mm) operation distance

Da(mm) release distance

Min

Typ

Max

Min

Typ

Max

BBHME301

0.85

1.45

2.05

1.54

2.29

3.04

CROSS REFERENCE

Part Number

Replacement

BBHME301

HKZ101,HKZ101S,HKZ121

HKZ101, HKZ101S, HKZ121

Camshaft Position Sensor

When used in cars, our sensor is usually known as camshaft position sensor (also G40 in the factory manuals). This sensor is positioned behind the cam gear and reads the shutter wheel. Its reading is done through a hall effect pulse being sent to the ECU to indicate the compression stroke by the engine.

This signal is used by the factory motronic ECU at startup, so when a sensor is starting to fail you will see the car failing. Once it starts it usually runs fine, and some times the motor may starts without delay.

Why use our replacement sensor? The sensor sold by audi, which also has the factory bracket, costs over $100. Our substantially less costly replacement requires the faulty sensor to be removed from the factory bracket so our new sensor can be installed (get the brass tabs pressed into place to affix it to the bracket).

Usual configuration for our sensors (urs4/s6):

  • sensor red wire (+5v) to vehicle red wire (pin 1)
  • sensor green wire (signal) to vehicle gray/red wire (pin 2)
  • sensor black wire (ground) to vehicle brown/red wire (pin 3)