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Honeywell SS441R Unipolar Hall Effect Magnetic Sensor - TO-92 Through Hole, 35-135 G Operating Point

₹72.00 (Inclusive of all taxes)
Out of Stock

The Honeywell SS441R is a unipolar digital Hall-effect sensor in a TO-92 package, designed for through-hole mounting. It operates from a 3V supply, making it suitable for low-voltage systems like battery-powered devices and microcontrollers (Arduino, Raspberry Pi), and provides a digital output triggered by a magnetic field between 35 and 135 Gauss.

Features

  • Unipolar digital Hall-effect sensor with a 35 G to 135 G operating point range.
  • Low-voltage operation (3 Vdc) for energy-efficient, battery-powered designs.
  • Wide operating temperature range from -40°C to +150°C for stable performance in harsh environments.
  • TO-92 through-hole package for easy PCB integration and prototyping.
  • Digital output suitable for direct interfacing with microcontrollers and logic circuits.

Out of stock

Description

The Honeywell SS441R is a solid-state digital Hall-effect sensor that switches its output state in response to a unipolar magnetic field. Utilizing a silicon integrated circuit, it provides a reliable, contactless switching solution with high repeatability and long operational life, free from mechanical wear.

Engineered for stability across a broad industrial temperature range, the SS441R is ideal for integration into compact assemblies. Its 3V capability promotes energy efficiency in portable electronics, while its robust design ensures consistent performance in applications involving motion detection, position sensing, and proximity switching.

Key Features

  • Unipolar Magnetic Activation: Responds to a single magnetic pole (south pole) with a defined operating point range.
  • Low Power Consumption: Operates at 3.5 mA typical supply current, ideal for battery-sensitive applications.
  • High-Temperature Resilience: Maintains stable operation across an extended range of -40°C to +150°C.
  • Compact TO-92 Package: Facilitates automated PCB assembly and reduces overall system footprint.
  • Digital Output: Provides a clean, switched signal compatible with 3V and 5V logic families.
  • Versatile Mounting: Through-hole design ensures secure mechanical and electrical connection.

Applications

  • Brushless DC (BLDC) motor commutation and speed detection.
  • Reed switch replacement in lid closure and door position detection systems.
  • Proximity and displacement sensing in industrial automation and robotics.
  • Revolution counting and rotary encoding in consumer appliances.
  • Magnetic threshold detection in safety interlocks and tamper-proof mechanisms.

Technical Specifications

Manufacturer Part Number (MPN)SS441R
Sensor TypeUnipolar Digital Hall-Effect
Operating Point35 G to 135 G
Supply Voltage3 Vdc
Operating Supply Current3.5 mA
Maximum Output Current8 mA
Output TypeDigital
Output Voltage24 V (Max)
Package / CaseTO-92-Flat-3
Mounting TypeThrough Hole
Operating Temperature-40°C to +150°C

Frequently Asked Questions

What is the operating voltage range for the Honeywell SS441R sensor?

The SS441R is designed for low-voltage operation, typically at 3V DC. This makes it directly compatible with many microcontroller power rails and ideal for battery-powered, energy-efficient applications. Always consult the datasheet for absolute maximum ratings.

How does the unipolar operation work, and what magnetic pole does it detect?

A unipolar Hall-effect sensor like the SS441R is activated by a single magnetic pole, typically the south pole. It switches its digital output when the magnetic flux density exceeds the specified operating point (35-135 Gauss) and returns to its original state when the field is removed, providing a simple on/off signal.

Can I interface the SS441R directly with an Arduino or Raspberry Pi?

Yes. The SS441R's digital output can be connected directly to a microcontroller's digital input pin. Ensure your circuit provides the correct 3V supply for the sensor. A pull-up resistor may be required on the output line depending on your specific configuration and the sensor's open-collector design.

What is the significance of the wide -40°C to 150°C temperature range?

This extended operating temperature range ensures reliable performance in harsh environments, such as under-hood automotive applications, industrial machinery, or outdoor equipment. The sensor's characteristics remain stable, providing consistent switching points across this full temperature spectrum.

Package Includes

  • 1 x Honeywell SS441R Unipolar Hall Effect Magnetic Sensor

Additional Information

Weight 0.11 kg
Dimensions 8 × 6 × 3 cm