Honeywell SS443A

The SS400 Series and SS500 Series are small, versatile, digital Hall- effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet. They are designed to respond to alternating North and South poles, or to a South pole only. They are available in bipolar, latching or unipolar magnetics. On- board regulation provides stable operation over a 3.8 Vdc to 30 Vdc supply voltage range. These sensors are capable of continuous 20 mA sinking output and may be cycled as high as 50 mA max. The 3.8V capability allows for use in many potential low voltage applications. The digital, open collector sinking- type output is easily interfaced with a wide variety of electronic circuits. To provide reliable products and consistent quality, the SS400 Series products are tested at both 25°C [75°F] and 125°C [257°F]. All catalog listings in the SS400 Series are qualified for operation up to 150°C [302°F]

• Quad Hall IC design minimizes mechanical stress effects
• Temperature- compensated magnetics help provide stable operation over a wide temperature range of - 40°C to 150°C [- 40°F to 302°F] (SS400 Series) and - 50°C to 150°C [- 58°F to 320°F] (SS500 Series)
• Broad inclusive supply voltage capability from 3.8 Vdc to 30 Vdc for application flexibility
• Digital, open collector sinking output for easy interfacing with a variety of common electronic circuits
• High sensitivity versions available for potential applications requiring high accuracy or wide gaps
• Bipolar, latching or unipolar magnetics

• Industrial: Speed and RPM (revolutions per minute) sensing, tachometer, counter pickup, flow- rate sensing, brushless dc (direct current) motor commutation, motor and fan control, robotics control
• Transportation: Speed and RPM (revolutions per minute) sensing, tachometer, counter pickup, motor and fan control, electric window lift, convertible roof position
• Medical: Motor assemblies, medication dispensing control