Digital Position Sensors come in subminiature packages.

Press Release Summary:

Respectively supplied in SOT-23 SMT and leaded, flat TO-92 packages, SS311PT and SS411P bipolar Hall-effect sensors operate from 2.7-7 Vdc supply voltage. Built-in pull-up resistor can interface with common electronic circuits and both models are operated by magnetic field from permanent magnet or electromagnet. They may be used in speed and RPM sensing, tachometers, flow-rate sensing, brushless dc motor commutation, motor/fan/robotics control, and counter pickup.

Original Press Release:

Honeywell Expands Hall-Effect Sensor Portfolio with New SS311PT and SS411P Bipolar Sensors

Built-in Pull-up Resistor and Subminiature Package Style Help Reduce Manufacturing Costs

MINNEAPOLIS, October 12, 2009 - Honeywell (NYSE: HON) has further expanded its Hall-effect sensor portfolio with the introduction of the SS311PT and SS411P bipolar Hall-effect digital position sensors. These devices differ from Honeywell's existing digital Hall-effect sensors in that they have a built-in pull-up resistor and a low 2.7 Vdc voltage capability - the lowest rating in Honeywell's digital Hall-effect sensor portfolio.

The built-in pull-up resistor can easily interface with common electronic circuits and eliminates the need for the customer to purchase an external pull-up resistor, reducing the total system cost. Honeywell has also downsized the sensor's integrated circuit, saving on manufacturing costs while still meeting customer requirements. These manufacturing cost savings result in lower costs to customers. The low 2.7 Vdc to 7 Vdc low supply voltage range allows for use in a variety of applications.

The SS311PT subminiature SOT-23 surface-mount package is supplied on tape and reel for automated pick and place assembly. The SS411P's leaded, flat TO-92 package allows for extra space on the printed circuit board. These small, versatile Hall-effect devices are operated by the magnetic field from a permanent magnet or an electromagnet. They respond to alternating North and South poles. Both sensors feature enhanced sensitivity which allows for the use of smaller, often less expensive magnets.

Designed for high-volume, cost-sensitive, rotary sensing applications, the SS311PT and SS411P may be used in speed and RPM sensing, tachometers, flow-rate sensing, brushless dc motor commutation, motor/fan/robotics control, and counter pickup.

Honeywell International ( ) is a Fortune 100 diversified technology and manufacturing leader, serving customers worldwide with aerospace products and services; control technologies for buildings, homes and industry; automotive products; turbochargers; and specialty materials. Based in Morris Township, N.J., Honeywell's shares are traded on the New York, London, and Chicago Stock Exchanges. For more news and information on Honeywell, please visit

More from Software

All Topics

COVID-19 Response Suppliers COVID-19 Response:
Can Your Company Help Provide Critical Supplies?

We are using the power of our platform to aid in the mass shortage of critical supplies. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek SuitsPlease let us know.

COVID-19 Response Suppliers