Unipolar Digital Position Sensors operate from 3-24 Vdc.
September 18, 2009 -
Housed in SOT-23 subminiature surface mount package, Series SS340RT responds to North pole, while Series SS440R, featuring flat TO-92 style package, responds to South pole. Sinking output with open collector allows devices to interface with many electrical components without buffering. Operating up to 302°F, Hall Effect sensors offer reverse polarity protection and are suited for door or lid closure detection, speed and rpm sensing, flow rate sensing, and valve position control.
Honeywell's Unipolar Hall-Effect Digital Position Sensors Include Subminiature Surface Mount Package to Help Reduce Manufacturing Costs
SS340RT and SS440R Series are Price Competitive, Operate from a Voltage as Low as 3 Vdc, and Offer Reverse Polarity Protection
MINNEAPOLIS, September 14, 2009 - Honeywell (NYSE: HON) today announced new Unipolar Hall-Effect Digital Position Sensors, the SS340RT and SS440R Series, that include an SOT-23 subminiature surface mount package, built-in reverse polarity protection, and a low 3 Vdc capability. The new devices will occupy less space on a printed circuit board (PCB) than other Honeywell Hall-effect sensors, can simplify installation, and can protect the device from damage when mounted on the PCB.
Honeywell has optimized the size of the integrated circuit, saving on manufacturing costs while still meeting customer requirements. These manufacturing cost savings result in lower costs to customers. The SS340RT Series is a subminiature device that is available on tape and reel, which allows for automated pick-and-place assembly, helping to reduce the customer's manufacturing costs. As a unipolar device, the SS340RT Series is designed to respond to a single pole (North). The SS440R Series is available in a leaded flat TO-92 style package. It is designed to respond to a South pole.
Potential applications include door or lid closure detection, speed and RPM (revolutions per minute) sensing in fitness equipment, flow rate sensing in industrial processes, appliances, or water softeners, damper or valve position control in industrial, HVAC, or residential/commercial applications, robotic control (cylinder position monitoring), float-based fluid level sensing, printer head position sensing, displacement sensor in hospital beds or medical equipment, and medication bin monitors on portable drug carts.
The SS340RT and SS440R Series' 3 Vdc to 24 Vdc supply voltage range and their ability to operate up to 150 °C [302 °F] expand application opportunities. Their thermally balanced integrated circuit provides stable operation over a full temperature range. Sinking output with an open collector allows the device to interface with many electrical components without buffering.
These devices are supplied in three magnetic sensitivities:
o Highest sensitivity: The SS341RT and SS441R devices offer the highest sensitivity of the Series, with a typical operating point of 85 G at 25 °C [77 °F]
o Medium sensitivity: The SS343RT and SS443R offer medium sensitivity with 125 G typical at 25 °C [77 °F]
o Lowest sensitivity: The SS349RT and SS449R offer the lowest sensitivity, requiring 350 G typical to operate at 25°C [77 °F]
The SS340RT and SS440R Series join a unipolar Hall-effect digital position sensor portfolio that includes the SS441A/SS541AT (low gauss, high sensitivity), SS443A/SS543AT (medium gauss, medium sensitivity), and SS449A/SS549AT (high gauss, low sensitivity). These devices are very small, versatile sensors operated by the magnetic field from a permanent magnet or an electromagnet.
Honeywell International (www.honeywell.com ) 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 www.honeywellnow.com. Company Information: Name: Honeywell Address: 1985 Douglas Dr., N. City: Golden Valley State: MN ZIP: 55422 3935 Country: USA Phone: 612-951-1000 http://www.honeywell.com
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