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Honeywell SS341RT Unipolar Hall Effect Sensor IC - SOT-23 Package, 3V Operation

₹51.00 (Inclusive of all taxes)
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The Honeywell SS341RT is a unipolar Hall effect sensor IC in a compact SOT-23 package, designed for low-voltage 3V operation with a wide -40°C to 150°C temperature range. It provides a digital output signal activated by a single magnetic pole, making it ideal for integration into automated SMD assembly lines for position, speed, and proximity sensing in industrial, medical, and consumer applications.

Features

  • Unipolar Hall effect sensor activated by a single magnetic pole (S or N).
  • Compact SOT-23-3 surface-mount package for automated PCB assembly.
  • Low-voltage operation down to 3V DC with reverse polarity protection.
  • Wide operating temperature range from -40°C to +150°C.
  • Thermally balanced IC design for stable magnetic switching points.

Out of stock

Description

The SS341RT is a high-reliability, unipolar Hall-effect sensor integrated circuit from Honeywell. It functions as a magnetic switch, providing a digital output that toggles when exposed to a sufficient magnetic field strength from a single pole. Its design incorporates a thermally balanced circuit to maintain consistent performance across its extended industrial temperature range.

Engineered for durability, the IC includes built-in reverse polarity protection to safeguard against installation errors. The subminiature SOT-23 footprint makes it suitable for space-constrained designs and high-volume surface-mount manufacturing processes, offering a robust sensing solution for harsh environments.

Key Features

  • Unipolar magnetic sensing with configurable operating point sensitivity.
  • Ultra-compact SOT-23-3 surface-mount device (SMD) package.
  • Low-voltage operation compatible with 3V and higher logic systems.
  • Integrated reverse polarity protection on the supply pins.
  • Extended operating temperature range of -40°C to +150°C.
  • Thermally stabilized IC for consistent magnetic switch points.
  • RoHS-compliant construction meeting environmental standards.
  • High-reliability design suitable for medical and industrial applications.

Applications

  • Door, lid, or cover closure detection in appliances and security enclosures.
  • Speed and RPM sensing in brushless DC motors, fans, and fitness equipment.
  • Linear position sensing for pneumatic/hydraulic cylinders and robotic actuators.
  • Flow meter pickup and vane rotation detection in industrial processes.
  • Valve and damper position feedback in HVAC control systems.

Technical Specifications

Manufacturer Part NumberSS341RT
BrandHoneywell
Sensor TypeUnipolar Hall Effect Switch
Package / CaseSOT-23-3
Mounting TypeSMD/SMT
Operating Voltage3 V (up to 24V max)
Output TypeDigital (Open Collector/Drain)
Max Output Current8 mA
Operating Point (Bop)35 G to 135 G (configurable)
Operating Temperature-40°C to +150°C
ComplianceRoHS

Frequently Asked Questions

What is the operating voltage range for the Honeywell SS341RT sensor?

The SS341RT is designed for low-voltage operation, typically starting at 3V DC. It can withstand voltages up to 24V maximum as per its specifications. Always refer to the datasheet for the complete absolute maximum ratings to ensure proper circuit design and protection.

How do I interface with the SS341RT Hall effect sensor output?

The SS341RT provides a digital open-collector output. This requires a pull-up resistor to your logic voltage (e.g., 3.3V or 5V) on the output pin. The output switches to a low state when the applied magnetic field exceeds the sensor's operating point (Bop).

What does 'unipolar' mean for this Hall effect sensor?

A unipolar Hall sensor, like the SS341RT, is activated by one polarity of a magnetic field (either South or North) and releases when the field strength drops below a lower threshold. It is typically used with a single magnet pole facing the sensor for simple on/off switching applications.

What is the significance of the 'Operating Point: 35 G To 135G' specification?

This indicates the magnetic field strength (in Gauss) required to activate the sensor's output. The SS341RT is available in different sensitivity bins within this 35 G to 135 G range. You must select the specific variant (e.g., SS341RTH for high sensitivity) that matches your application's magnetic field strength.

Can this sensor be used in high-temperature environments?

Yes, the Honeywell SS341RT is rated for an extended operating temperature range of -40°C to +150°C. Its thermally balanced IC design ensures stable magnetic switching points across this full range, making it suitable for demanding industrial, automotive, or medical applications.

Package Includes

  • 1 x Honeywell SS341RT Hall Effect Sensor IC (SOT-23 package)