Honeywell SS351AT

Hall Effect Sensor 20mA Omnipolar 3.3V/5V/9V/12V/15V/18V 3-Pin SOT-23 T/R

SENSOR, HALL EFFECT, OMNIPOLAR, SOT-23; Sensor Terminals:SMD; Output Voltage Min:400mV; Supply Voltage Range DC:3V to 24V; Output Configuration:Sink; Sensor Housing:SOT-23; Switching Speed:1.5µs; SVHC:No SVHC (20-Jun-2011)

Omnipolar Hall-Effect Position Sensor; Hall Effect Type:Omnipolar; Output Current:20mA; Sensor Case Style:SOT-23; No. of Pins:3; Supply Voltage Range:3 to 24 VDC; Operating Temperature Range:-40°C to +150°C; Operate Point Max:135G

The SS351AT and SS451A sensors 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 a either a North pole or a South pole. These omnipolar sensors are sensitive and flexible devices designed to meet a wide range of potential applications. The SS351AT and SS451A have a typical operating point of 85 G at 25 °C [77 °F]. Because they can be operated by a North pole or a South pole, they do not require the magnet polarity to be identified, thus making the installation easier and potentially reducing the system cost. These sensors are available in two package styles. The SS351AT is available in the subminiature SOT-23 surface mount package; the SS451A is available in the leaded, flat TO-92-style package. The SS351AT’s small size requires less PC board space, allowing it to be used in smaller assemblies. Its 3 Vdc capability allows for use in low voltage applications, promoting energy efficiency. The SS351AT is available on tape and reel (3000 units per reel); the SS451A is available in a bulk package (1000 units per bag).