Description

Note: Looking at the black head of the Hall Effect Senor, the side that has a writing of “451A” is the top face and the other side is the bottom face. Place the Hall Effect Sensor so that the bottom face is against the table and top face is the face that you can see. Looking down at the top face with the pins facing towards you. The first pin is the Positive (+), the second pin is the Ground (-) and the third pin is the Output.

The output current flows when either the North Pole or South Pole is facing the top face and turns off when either the North Pole or South Pole is removed. In summary, the output current flows when there’s a magnetic field present and turns off when there is no magnetic field present.

Notes:

1) Do not exceed the maximum limits of the sensor. Use a resistor or other components when needed.

2) For applications requiring a higher output current greater than the maximum output current rating, use an amplifier such as a transistor to carry that amount of current.

3) For DC Motor applications, remember to use a diode to drain the spike voltage that occurs when the current is automatically turned off.

                               Basic Specs

Supply Voltage minimum:        3V

Supply Voltage maximum:       28V

Magnetic Flux Density:             Unlimited.

Supply Current:                          6 mA

Output Current max:                20 mA

Operating Temp:                      -40F to 302F

Storage Temp:                          -40F to 302F

Operating point min:                35 Gauss

Operating point min:               -135 Gauss

Operating point max:               135 Gauss

Operating point max:              -35 Gauss

Release point min:                    10 Gauss

Release point min:                   -120 Gauss

Release point max:                   120 Gauss

Release point max:                  -10 Gauss

FEATURES/BENEFITS

• Can be operated by either a North pole or South pole and does not require the magnetic polarity to be identified thus making the installation easier and potentially reducing the system cost.
• Simple activation from a North Pole or South Pole and sensitive omnipolar product suitable in a variety of motion control, lid closure detection, and displacement sensing applications.
• Low voltage 3Vdc capacity helps reduce power consumption.
• Built-in power reverse protection.
• 3V to 24V DC operation voltage.
• Subminiature design.
• -40°C to 150°C DC operation voltage.
• Output protection against electrical disturbances.
• Lead Free Finish/RoHS Compliant. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied.
• Easy to use.
• Durable.
• Safe.
• Well designed

TYPICAL APPLICATIONS

• Brush-less DC Motor Commutation.
• RPM Detection.
• Robotic Control.
• Consumer and industrial position sensor.
• Position Indicator/Sensing.
• Proximity Indicator.
• Rotation Indexing.
• Damper or valve position control in HVAC (Heating,ventilation, air-conditioning) equipment.
• Magnetic encoder for building access.
• Flow meters/Flow rate sensing.
• Float-based fluid level sensing.
• Displacement sensor in hospital beds and medical equipment.
• Medication bin monitor on portable drug carts.
• Ideal for making electromagnets.
• LED blinkers and pulsations.
• Relays.
• Electronic communication.
• Inductors.
• Solenoids.
• Small Transformers.
• Motors
• Timers.
• Automotive.
• Industrial
• Environmental Solutions.