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TR0203-LBH
TR
50000
T/T, Western Union, Paypal
Shanghai, China
A hall effect sensor is a widely used device in modern electronics and industrial automation. It operates based on the Hall effect, discovered by Edwin Hall in 1879, which states that when a magnetic field is applied perpendicular to the flow of electric current in a conductor, a measurable voltage—called the Hall voltage—is generated at right angles to both the current and the magnetic field. By leveraging this phenomenon, a hall effect sensor converts magnetic field variations into electrical signals, enabling contactless measurement of position, speed, proximity, and current.
The fundamental operation of a hall effect sensor begins with a thin strip of conductive or semiconductive material through which a steady current flows. When this material is exposed to a perpendicular magnetic field:
Charge Carrier Deflection – Electrons or holes moving in the conductor are deflected sideways due to Lorentz force.
Voltage Generation – This deflection creates a potential difference, or Hall voltage, across the material.
Signal Output – The Hall voltage is directly proportional to the strength of the magnetic field and the current flowing through the sensor.
Conditioning Circuit – The tiny voltage is amplified and conditioned by integrated electronics to produce a readable output signal (digital or analog).
This non-contact, magnetic-based measurement is what makes the hall effect sensor highly reliable in environments where mechanical wear, dust, or oil would make traditional sensors less effective.
Non-Contact Measurement – Provides wear-free operation, increasing longevity.
High Reliability – Resistant to vibration, dirt, and environmental contaminants.
Versatility – Can measure proximity, displacement, current, and rotational speed.
Fast Response Time – Ideal for dynamic systems like motor control.
Compact Size – Easily integrated into electronic systems, from smartphones to vehicles.
Analog Hall Effect Sensors – Produce a continuous voltage output proportional to the magnetic field strength. Commonly used in precise measurement applications.
Digital Hall Effect Sensors – Output is switched on or off depending on the magnetic threshold, widely used for proximity detection.
Linear Hall Effect Sensors – Provide accurate readings of position or displacement.
Current Sensing Hall Sensors – Used in power systems and motor drives for detecting AC and DC currents safely.
The versatility of a hall effect sensor allows it to be applied in multiple fields:
Used for crankshaft and camshaft position detection to control ignition timing.
Integrated into anti-lock braking systems (ABS) for wheel speed measurement.
Employed in throttle position sensors and electric power steering systems.
Detects gear shifts and pedal positions to improve driving safety and efficiency.
Provides non-contact position and speed measurement for motors, pumps, and conveyors.
Used in robotics for joint angle measurement and feedback control.
Helps in detecting open/close states of valves, doors, or mechanical parts.
Smartphones and laptops use hall effect sensors for proximity detection, such as auto screen wake/sleep when opening or closing a case.
Applied in gaming controllers for joystick position sensing, offering durability compared to resistive sensors.
Integrated in solar inverters and wind turbines for current measurement.
Hall-based current sensing ensures isolation and safety in high-voltage circuits.
Improves energy efficiency by enabling accurate feedback in power conversion systems.
Used in magnetic resonance imaging (MRI) equipment for precise positioning.
Provides safe, contactless measurement in devices that must avoid electrical interference.
Plays a role in navigation systems for measuring angular velocity and position.
Integrated in UAVs and aircraft for monitoring motor speed and actuator movement.
No Mechanical Wear – Contactless operation eliminates physical degradation.
Durability – Withstands harsh environments of dust, oil, or vibration.
Compact Integration – Easily embedded into circuits without mechanical complexity.
Flexibility – Applicable for both linear and rotational sensing, AC/DC current measurement, and digital switching.
With the rapid growth of electric vehicles, renewable energy, and smart electronics, the demand for reliable sensing technologies is expanding. The hall effect sensor is expected to play an even larger role in the future due to:
Integration with IoT and smart systems for predictive maintenance.
Development of miniaturized sensors for portable electronics.
Increasing use in autonomous vehicles for position and current detection.
Enhanced precision with advanced semiconductor materials.
As industries move toward automation and electrification, the hall effect sensor will remain an indispensable solution, combining simplicity, durability, and versatility.
| Specification | 20A/4V | 50A/4V | 100A/4V | Unit | |
|---|---|---|---|---|---|
| IPN | Primary Rated Input Current | 20 | 50 | 100 | A |
| IP | Primary Current Measurement Range | 0～40 | 0～75 | 0～150 | A |
| VSN | Secondary rated output voltage | 4 | V | ||
| VC | The Power Supply Voltage | ±12～15(±5%) | V | ||
| IC | Current Consumption | ＜10+Is | mA | ||
| Vd | Insulation Voltage | Between primary and secondary circuits:2.5kV/50Hz/1min | |||
| εL | Linearity | ＜0.2 | %FS | ||
| X | Precision | TA=25℃:≤±0.2 | % | ||
| V0 | Offset Voltage | TA=25℃:≤±0.1 | mV | ||
| VOM | Magnetic Offset Voltage | IP=0 after 3*IPN:≤±0.15 | mV | ||
| VOT | Offset voltage temperature drift | IP=0TA=-25～+75℃:≤±0.5 | mV/℃ | ||
| Tr | Response time | ≤1 | μS | ||
| f | Bandwidth(-3dB) | DC～100 | kHz | ||
| TA | Working Temperature | -25～+75 | ℃ | ||
| TS | Storage Temperature | -45～+85 | ℃ | ||
Note:
The sensor should be wired correctly, otherwise it may damage the internal components of the sensor
When the sensor is soldered to the circuit board, it needs to be soldered with a low-temperature soldering iron, and the time should not be too long, and secondly, the pins should not be squeezed by a large amount, otherwise the internal connection may be opened.
Dynamic performance (DI/DT and response time) is best when the input current row is fully filled with the primary perforation
A hall effect sensor is a widely used device in modern electronics and industrial automation. It operates based on the Hall effect, discovered by Edwin Hall in 1879, which states that when a magnetic field is applied perpendicular to the flow of electric current in a conductor, a measurable voltage—called the Hall voltage—is generated at right angles to both the current and the magnetic field. By leveraging this phenomenon, a hall effect sensor converts magnetic field variations into electrical signals, enabling contactless measurement of position, speed, proximity, and current.
The fundamental operation of a hall effect sensor begins with a thin strip of conductive or semiconductive material through which a steady current flows. When this material is exposed to a perpendicular magnetic field:
Charge Carrier Deflection – Electrons or holes moving in the conductor are deflected sideways due to Lorentz force.
Voltage Generation – This deflection creates a potential difference, or Hall voltage, across the material.
Signal Output – The Hall voltage is directly proportional to the strength of the magnetic field and the current flowing through the sensor.
Conditioning Circuit – The tiny voltage is amplified and conditioned by integrated electronics to produce a readable output signal (digital or analog).
This non-contact, magnetic-based measurement is what makes the hall effect sensor highly reliable in environments where mechanical wear, dust, or oil would make traditional sensors less effective.
Non-Contact Measurement – Provides wear-free operation, increasing longevity.
High Reliability – Resistant to vibration, dirt, and environmental contaminants.
Versatility – Can measure proximity, displacement, current, and rotational speed.
Fast Response Time – Ideal for dynamic systems like motor control.
Compact Size – Easily integrated into electronic systems, from smartphones to vehicles.
Analog Hall Effect Sensors – Produce a continuous voltage output proportional to the magnetic field strength. Commonly used in precise measurement applications.
Digital Hall Effect Sensors – Output is switched on or off depending on the magnetic threshold, widely used for proximity detection.
Linear Hall Effect Sensors – Provide accurate readings of position or displacement.
Current Sensing Hall Sensors – Used in power systems and motor drives for detecting AC and DC currents safely.
The versatility of a hall effect sensor allows it to be applied in multiple fields:
Used for crankshaft and camshaft position detection to control ignition timing.
Integrated into anti-lock braking systems (ABS) for wheel speed measurement.
Employed in throttle position sensors and electric power steering systems.
Detects gear shifts and pedal positions to improve driving safety and efficiency.
Provides non-contact position and speed measurement for motors, pumps, and conveyors.
Used in robotics for joint angle measurement and feedback control.
Helps in detecting open/close states of valves, doors, or mechanical parts.
Smartphones and laptops use hall effect sensors for proximity detection, such as auto screen wake/sleep when opening or closing a case.
Applied in gaming controllers for joystick position sensing, offering durability compared to resistive sensors.
Integrated in solar inverters and wind turbines for current measurement.
Hall-based current sensing ensures isolation and safety in high-voltage circuits.
Improves energy efficiency by enabling accurate feedback in power conversion systems.
Used in magnetic resonance imaging (MRI) equipment for precise positioning.
Provides safe, contactless measurement in devices that must avoid electrical interference.
Plays a role in navigation systems for measuring angular velocity and position.
Integrated in UAVs and aircraft for monitoring motor speed and actuator movement.
No Mechanical Wear – Contactless operation eliminates physical degradation.
Durability – Withstands harsh environments of dust, oil, or vibration.
Compact Integration – Easily embedded into circuits without mechanical complexity.
Flexibility – Applicable for both linear and rotational sensing, AC/DC current measurement, and digital switching.
With the rapid growth of electric vehicles, renewable energy, and smart electronics, the demand for reliable sensing technologies is expanding. The hall effect sensor is expected to play an even larger role in the future due to:
Integration with IoT and smart systems for predictive maintenance.
Development of miniaturized sensors for portable electronics.
Increasing use in autonomous vehicles for position and current detection.
Enhanced precision with advanced semiconductor materials.
As industries move toward automation and electrification, the hall effect sensor will remain an indispensable solution, combining simplicity, durability, and versatility.
| Specification | 20A/4V | 50A/4V | 100A/4V | Unit | |
|---|---|---|---|---|---|
| IPN | Primary Rated Input Current | 20 | 50 | 100 | A |
| IP | Primary Current Measurement Range | 0～40 | 0～75 | 0～150 | A |
| VSN | Secondary rated output voltage | 4 | V | ||
| VC | The Power Supply Voltage | ±12～15(±5%) | V | ||
| IC | Current Consumption | ＜10+Is | mA | ||
| Vd | Insulation Voltage | Between primary and secondary circuits:2.5kV/50Hz/1min | |||
| εL | Linearity | ＜0.2 | %FS | ||
| X | Precision | TA=25℃:≤±0.2 | % | ||
| V0 | Offset Voltage | TA=25℃:≤±0.1 | mV | ||
| VOM | Magnetic Offset Voltage | IP=0 after 3*IPN:≤±0.15 | mV | ||
| VOT | Offset voltage temperature drift | IP=0TA=-25～+75℃:≤±0.5 | mV/℃ | ||
| Tr | Response time | ≤1 | μS | ||
| f | Bandwidth(-3dB) | DC～100 | kHz | ||
| TA | Working Temperature | -25～+75 | ℃ | ||
| TS | Storage Temperature | -45～+85 | ℃ | ||
Note:
The sensor should be wired correctly, otherwise it may damage the internal components of the sensor
When the sensor is soldered to the circuit board, it needs to be soldered with a low-temperature soldering iron, and the time should not be too long, and secondly, the pins should not be squeezed by a large amount, otherwise the internal connection may be opened.
Dynamic performance (DI/DT and response time) is best when the input current row is fully filled with the primary perforation
