SKU: SENS-0995
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Honeywell SL353HT Omnipolar Hall Effect Magnetic Sensor - SOT-23-3 SMD

₹81.00 (Inclusive of all taxes)
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The Honeywell SL353HT is a compact, omnipolar digital Hall-effect sensor IC in an SOT-23-3 SMD package, designed for low-voltage (3V) applications. It provides a digital output triggered by either north or south magnetic poles, making it ideal for integration into automated assemblies, motion control systems, and portable electronics.

Features

  • Omnipolar magnetic sensing activated by either north or south pole.
  • Low operating voltage capability (3 Vdc) for energy-efficient designs.
  • Wide operating temperature range from -40°C to +85°C.
  • Compact SOT-23-3 surface-mount (SMD) package for automated placement.
  • Digital output with a maximum sink current of 5 mA.

Out of stock

Description

The SL353HT is a versatile, board-mount digital Hall-effect sensor from Honeywell. It operates on the principle of the Hall effect, where a voltage difference is generated across a conductor when exposed to a magnetic field. This IC converts that analog phenomenon into a clean digital output signal, simplifying interface with microcontrollers and logic circuits. Its omnipolar design means it responds to magnetic fields of either polarity, increasing application flexibility.

Engineered for stability, the device maintains consistent performance across a broad temperature range from -40°C to +85°C. The integrated circuitry provides a robust digital output capable of sinking up to 5 mA, suitable for directly driving LEDs or interfacing with other low-power logic inputs. The SOT-23-3 package is optimized for high-volume, automated PCB assembly processes.

Key Features

  • Omnipolar Magnetic Activation: Responds to both north and south magnetic poles, simplifying magnet orientation and assembly.
  • Low-Voltage Operation: 3 Vdc capability enables use in battery-powered and energy-conscious portable devices.
  • Digital Output Interface: Provides a clean, switched output signal for direct microcontroller GPIO connection.
  • Robust Thermal Performance: Guaranteed operation across an industrial temperature range of -40°C to +85°C.
  • Compact SMD Footprint: SOT-23-3 package allows for high-density PCB layouts and automated pick-and-place manufacturing.
  • Low Power Consumption: Typical operating supply current of 2.5 mA contributes to overall system energy efficiency.

Applications

  • Lid, door, and cover closure detection in consumer electronics and appliances.
  • Non-contact position sensing in brushless DC (BLDC) motor commutation.
  • Proximity and presence detection in automated industrial equipment.
  • Magnetic switch functionality in portable devices and IoT endpoints.
  • Linear and rotary displacement measurement in compact assemblies.

Technical Specifications

Manufacturer Part Number (MPN)SL353HT
Sensor TypeDigital Hall-Effect, Omnipolar
Package / CaseSOT-23-3
Mounting TypeSMD/SMT (Surface Mount)
Operating Supply Voltage3 Vdc
Operating Supply Current2.5 mA
Maximum Output Current5 mA (Sink)
Magnetic Operating Point Range20 G to 110 G
Operating Temperature Range-40°C to +85°C

Frequently Asked Questions

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

Omnipolar means the SL353HT sensor is activated by a magnetic field of either polarity—both north and south poles. This simplifies design as you do not need to orient the magnet in a specific direction. The digital output will switch when the magnetic field strength exceeds the operating point, regardless of the pole facing the sensor.

What is the operating voltage and how do I power the SL353HT?

The SL353HT is designed for low-voltage operation, typically at 3 Vdc. Connect the Vcc pin to your 3V supply and GND to ground. Ensure your power source is stable and within the specified limits to guarantee proper sensor operation and output signal integrity.

How do I interface the digital output with an Arduino or microcontroller?

The sensor's output is an open-drain digital signal. Connect the output pin to a microcontroller GPIO pin, using a pull-up resistor (typically 10kΩ) to your logic voltage (3.3V or 5V). The pin will be pulled low when a magnetic field is detected. You can then read this state using a standard digitalRead() function.

What is the magnetic operating point range of 20 G to 110 G?

This range defines the magnetic flux density required to activate the sensor. The sensor will reliably switch its output when exposed to a field strength between 20 Gauss (minimum sensitivity) and 110 Gauss (within specification). You must select a magnet that can produce at least 20 G at the intended sensing distance from the sensor face.

Package Includes

  • 1 x Honeywell SL353HT Omnipolar Hall Effect Magnetic Sensor

Additional Information

Weight 0.11 kg
Dimensions 6 × 8 × 3 cm