Product Overview
The SS361CT and SS461C High Sensitivity Bipolar Latching, Hall-Effect Digital Sensor ICs 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.
These bipolar sensor ICs have enhanced sensitivity which often allows for the use of less expensive magnets. They offer reverse polarity protection and deliver a stable output over a -40 °C to 125 °C [-40 °F to 257 °F] temperature range. Operation from any dc supply voltage from 4 Vdc to 24 Vdc is acceptable.
These Hall-effect devices are available in two package styles:
SS361CT: subminiature SOT-23 surface mount package (tape and reel packaging, 3,000
units per reel)
SS461C: leaded, flat TO-92 style package (bulk packaging, 1,000 units per bag)
The new SS361CT and SS461C provide value for our customers by:
• High sensitivity: These devices operate from only 50 Gauss typical at 25 °C [77 °F], 80
Gauss maximum at -40 to 85 °C [-40 to 185 °F], and 95 Gauss maximum over the full temperature range, allowing
for the use of smaller, potentially lower cost magnets or wider air gaps.
• Price competitive: Honeywell has downsized the integrated circuit, saving on
manufacturing costs while still meeting customer requirements; these savings result in lower costs to
customers.
• Economical: The SS361CT is supplied on tape and reel, allowing for automated,
lower-cost pick and place assembly which can help the customer reduce manufacturing costs.
• Subminiature size: The SS361CT’s subminiature SOT-23 package size uses less space on
the printed circuit board than standard Hall-effect sensor packages such as TO-92 or SOT-89, allowing for use
in smaller assemblies.
• Bipolar latching magnetics respond to alternating North and South poles, making these products suited
for accurate speed sensing and RPM (revolutions per minute) measurement
• Wide operating voltage range of 4 to 24 Vdc allows for use in a wide range of applications
• Built-in reverse voltage capability enhances the protection of the sensor and the circuits
• Robust design allows devices to operate up to 125 °C [257 °F]
• RoHS-compliant materials meet Directive 2002/95/EC
Transportation
• Speed and RPM sensing
• Tachometer, counter pickup
• Motor and fan control
• Electric window lift
• Convertible roof position
Medical
• Flow-rate sensing for appliances
• Speed and RPM sensing
• Tachometer, counter pickup
• Brushless dc (direct current) motor commutation
• Motor and fan control
• Robotics control
Industrial and Commercial
• Medical equipment using electric motors
