Hall Effect Sensors

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ModelImageOperating VoltageReverse VoltageMagnetic Operate PointMagnetic Release PointOperating Temperature RangePackageAlternative toP7Document
HX6944.5V-10.5V-0.5 VVCC = 5.00V3.75-40 to125°CTo92S SOT89SS495ADownload
HK5032.7V-30V-205535-40 to 150°CSOT23 TO92SAllegro1147/HAL1503/AH3373HK503-p7Download
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HK5082.7V-30V-20-55-35-40to150°CSOT23 TO92SAllegro12xy/HAL1508HK508-7Download
HK54y2.7V-30V-20V 40-40-40 to 150°CSOT23 TO92SA1204/HAL1561Download
HK402F3.0V-60V-0.5 V25-25-40 to 150°CSOT23 TO92SSS460Download
HK4652.5V-5.5V-403020-40 to 85°CSOT23 TO92SSS1331/SS1376/SS1438/SS109/AH183/CC6211Download
HK70X/HK71X3.8V-30V-40V75-75-40 to 150°CSOP8 TO94SS526DT/AH276Download
HK4013.0V-60V-60V45-45-40to150°CSOT23 TO92SSS41F/SS40A/US1881/MT8361Download
HK6954.5V-10.5VTyp 50% Vcc6--40to125°CTo92S SOT89-Download
HK5422.7V-30V-20V120-120-40 to 150°CSOT23 TO92S Allegro A1212/HAL1562Download
HK5052.7V-30V-20V135-135-40to150°CSOT23 TO92SHAL1505Download
HK5042.7V-30V-20V80-80-40to150°CSOT23 TO92SAllegro A1210/HAL1504Download
HK5022.7V-30V-20V25-25-40to150°CSOT23 TO92SA1202/HAL1502/CH442SRDownload
HK5012.7V-30V-20V9-9-40 to 150°CSOT23 TO92SA1201/HAL1501/HAL202Download
HK401F3.0V-60V-60V45-45-40to150°CSOT23 TO92SSS41F/SS40A/US1881/MT8361/EW4127611Download
HK50y2.7V-30V-20V120-120-40 °C up to 150 °CSOT23 TO92SA1212/HAL1562Download
HK4692.7V-5.5V-0.3V25-25-40 to 85°CSOT23 TO92S-Download
HK466M2.0V-5.5V-0.3V±30±18-40 to 85°CSOT23 TO92SHAL248Download
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HK6023V-12VTyp 50% Vcc2.5/1.6525-40to150°CSOT23 TO92SSS49E/SS39E/HX6659Download
HX6033V-12VTyp 50% Vcc3.25/225-40to125°CSOT23 TO92SSS49E/SS39E/MT9103/HX6659Download
HX6934.5V-10.5VTyp 50% Vcc3--40to125°CTo92S SOT89SS495ADownload
HK5102.7V-30V-20V9-9-40to150°CSOT23 TO92SA1201/HAL1501/HAL202Download
HK4223.0V-40V-0.5V3020-40 to125°CSOT23 TO92SSS341R/SS441R/AH44E/MT8315/Download
HK5112.7V-30V-20V70120-40 to 150°CSOT23 TO92SAllegro A12xy/HAL1511Download
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HX8104.5V-5.5V50%VCC1.8-3065kHz-40 to125°CT094A1363/SC4645 /MLX90242Download
HK402H3.0V-60V-60V25-25-40to150°CSOT23 TO92SSS360/EW612B/SDC177Download
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1. What are Hall effect sensors used for?

A Hall effect sensor, also known as Hall probe, which is an electronic device that is designed to detect the Hall effect, and convert its findings into electronic data, either to switch a circuit on and off, provide a measurement of a varying magnetic field, be processed by an embedded computer or displayed on an interface.
A Hall effect sensor is an electronic device that is designed to detect the Hall effect, and convert its findings into electronic data, either to switch a circuit on and off, provide a measurement of a varying magnetic field, be processed by an embedded computer or displayed on an interface.
Hall effect sensors can be found in cell phones and GPS, assembly lines, automobiles, medical devices and many IOT devices. The market for Hall effect sensors is expected to grow by more than 10% annually, reaching $7.55 billion by 2026.

2. What sensors are Hall effect sensors?

A Hall Effect sensor is a type of electronic device that is used to detect the presence of a magnetic field. It operates based on the Hall Effect, which is a physical phenomenon observed when a current-carrying conductor is placed in a magnetic field perpendicular to the direction of the current. This results in a voltage difference, known as the Hall voltage, across the sides of the conductor.

Hall Effect sensors are designed to convert this Hall voltage into an electrical signal that can be easily measured and used for various applications. These sensors consist of a thin piece of semiconductor material, typically a flat rectangular shape, through which a current is passed. When a magnetic field is applied perpendicular to the current flow, the electrons within the semiconductor material experience a force due to their motion and the magnetic field. This force creates a voltage difference across the material, which is then picked up as a measurable signal by the sensor.

3. What are the different types of Hall effect?

Hall effect sensors are devices that utilize the Hall effect to measure changes in magnetic fields. There are several types of Hall effect sensors, each with specific characteristics and applications. Here are some common types:

Analog Hall Effect Sensors: These sensors provide a continuous voltage output proportional to the strength of the applied magnetic field. The voltage level changes as the magnetic field changes, allowing for direct measurement of the field’s intensity.

Digital Hall Effect Sensors: These sensors provide a digital output signal, typically in the form of high or low logic levels, depending on the presence or absence of a magnetic field exceeding a certain threshold. They are commonly used for detecting the proximity or position of a magnet.
Bipolar Hall Effect Sensors: These sensors can detect both positive and negative magnetic fields. They are used in applications where the polarity of the magnetic field needs to be determined.

Unipolar Hall Effect Sensors: These sensors only respond to one polarity of the magnetic field, typically the south pole of a magnet. They are often used for speed and position sensing in applications like automotive speedometers.

Linear Hall Effect Sensors: These sensors provide an output that is directly proportional to the strength of the magnetic field. They are often used in applications requiring precise measurement of magnetic fields.
Latching Hall Effect Sensors: Latching sensors have two output states and stay in one state until a specific condition is met, such as the application of a reverse magnetic field. They are used in applications where power consumption needs to be minimized, as they consume power only when switching states.

Switching Hall Effect Sensors: These sensors are used to detect the presence or absence of a magnetic field and provide a corresponding output signal. They are commonly used in applications like proximity detection and non-contact switches.

Programmable Hall Effect Sensors: These sensors allow users to program various parameters, such as sensitivity and output behavior, to tailor the sensor’s response to specific applications.

Hall Effect Current Sensors: These sensors are designed to measure current by utilizing the Hall effect. They can measure both DC and AC currents without the need for direct electrical contact, making them suitable for high-voltage and high-current applications.

Hall Effect Gear Tooth Sensors: These sensors are used to detect the rotational speed of gears or other rotating machinery. They generate output pulses as the teeth of a gear pass by the sensor, allowing for accurate speed measurement.

4. What are the real life applications of Hall effect sensor?

Proximity Detection: Hall effect sensors are used in devices like smartphones to detect when a magnetic cover is closed or opened. This is commonly seen in flip covers that automatically lock the screen when closed.

Automotive Industry: They’re used in vehicles for applications such as wheel speed sensing (ABS systems), detecting the position of the accelerator pedal, and monitoring gearbox speed.

Current Sensing: Hall effect sensors can measure the current in a conductor without direct electrical contact. This is useful in applications like current monitoring in power distribution systems and battery management.

Speed Sensing: In industrial applications, Hall effect sensors can detect the speed of rotating equipment, such as motors and fans, by measuring the passing of gear teeth with a magnet attached.

Position Sensing: Hall effect sensors can determine the position of an object in relation to a magnet, making them useful in applications like linear and rotary encoders for precise measurement and control.
Anti-Tampering Devices: They’re used in security systems to detect the opening of doors or windows through the presence or absence of a magnetic field.

Medical Devices: In medical applications, Hall effect sensors can be used for tasks such as measuring blood flow or detecting the movement of medical equipment.

Consumer Electronics: They’re used in various consumer electronics, such as laptops, to detect when the lid is closed, which can trigger actions like putting the device to sleep.

5. Is a Hall effect sensor AC or DC?

A Hall effect sensor can work with both AC (alternating current) and DC (direct current) systems. The fundamental principle behind the Hall effect is the generation of a voltage difference across a conductor when it is subjected to a magnetic field perpendicular to the current flow. This voltage, known as the Hall voltage, is proportional to the strength of the magnetic field and the current flowing through the conductor.

As a result, Hall effect sensors can be used in both AC and DC applications to detect the presence, strength, or changes in magnetic fields. They are commonly employed in a wide range of applications, such as current sensing, speed sensing, position sensing, and more, across both AC and DC systems. The choice of sensor and its configuration would depend on the specific requirements of the application and the type of current being used