Hall Effect Sensor

Product Specifications

Technical details and manufacturing context for Hall Effect Sensor

Definition

A Hall effect sensor is a component used in voltage and current sensing systems to detect and measure magnetic fields. It operates by producing a voltage difference, known as the Hall voltage, across an electrical conductor when a magnetic field is applied perpendicular to the current flow. In practical applications, it is commonly used for non-contact current sensing, position detection, speed measurement, and proximity switching, offering electrical isolation and high reliability. The sensor typically includes a semiconductor material such as gallium arsenide, indium antimonide, or silicon, and is available in various package types including SOT-23, TO-92, and SIP-3. Key parameters include a supply voltage range of 4.5–24 V DC, supply current of 5–15 mA, and an operating temperature range of -40 to +150 °C. The output can be digital (open collector) or analog (ratiometric), with sensitivity ranging from 2.5 to 5.0 mV/G. The magnetic field range is ±50 to ±1000 G, and response time is 1–10 µs. Output voltage high is 0.8 × Vcc to Vcc, while output voltage low is 0–0.4 V. The sensor weighs approximately 0.1–0.5 g. These values are typical reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The sensor is designed for use in computer, electronic, and optical product manufacturing, and is classified as a component. It is important to confirm model-specific specifications and any applicable standards before procurement or integration.

Working Principle

When a current-carrying conductor is placed in a perpendicular magnetic field, a voltage, known as the Hall voltage, is generated across the conductor transverse to both the current and the field. This voltage is proportional to the product of the current and the magnetic field strength. In a Hall effect sensor, this effect is used to detect the presence, strength, or change of a magnetic field, which can be correlated to parameters such as current flow or position. The sensor typically includes a semiconductor material that amplifies the Hall voltage for practical use. The output signal can be analog, providing a continuous measure of field strength, or digital, indicating the presence or absence of a threshold field. This principle enables non-contact sensing, which is advantageous for applications requiring isolation and high reliability.

Common Materials

Semiconductor (e.g., Gallium Arsenide, Indium Antimonide, Silicon)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	4.5–24 V DC	Typical 5 V or 12 V; beyond range may cause malfunction.
Supply Current	5–15 mA	Depends on output type and load.
Output Type	Digital (open collector) or Analog (ratiometric)	Digital for speed/position, analog for field strength.
Sensitivity	2.5–5.0 mV/G	Analog output; higher sensitivity for weak fields.
Operating Temperature Range	-40–+150 °C	Extended range for automotive; beyond may cause drift.
Storage Temperature Range	-55–+165 °C	Non-operating survival range.
Magnetic Field Range	±50–±1000 G	Operating range; beyond may saturate output.
Response Time	1–10 µs	For digital output; faster for high-speed sensing.
Output Voltage High	0.8 × Vcc to Vcc V	Digital output; depends on pull-up.
Output Voltage Low	0–0.4 V	Digital output; sink current capability.
Package Type	SOT-23, TO-92, SIP-3	Surface mount or through-hole.
Weight	0.1–0.5 g	Depends on package.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Hall Element Part
The core semiconductor material where the Hall voltage is generated when subjected to a magnetic field.

Material: Semiconductor (e.g., GaAs, InSb, Si)
Signal Conditioning Circuit
Amplifies, linearizes, and processes the small Hall voltage signal for reliable output.

Material: Integrated Circuit (Silicon)
Package / Housing Part
Protects the sensitive internal components from environmental factors and provides mechanical stability.

Material: Plastic (e.g., Epoxy) or Ceramic

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hall Effect Sensor.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Voltage and Current Sensors

View system integration details

Manufacturers of Hall Effect Sensor

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Acrel Co., Ltd.

Shanghai, CN

CE IEC VDE

Also makes: Remote Terminal Unit, Current Transformer, Active Power Filter and 5 more