Boardoza SM351LT Hall Effect Sensor Board

Boardoza SM351LT Hall Effect Sensor Board

The Boardoza SM351LT is a high-sensitivity magnetoresistive sensor module designed for lid, door, and drawer position detection. It features omnipolar sensing, activating with either pole of a magnet. With a push-pull output, the module eliminates the need for an external pull-up resistor, simplifying integration into various applications.

Front Side	Back Side

• Lid, Door, and Drawer Position Detection: Detects open/closed states using a magnet.
• Non-Contact Operation: Works through non-metallic surfaces, making it ideal for sealed enclosures.
• Omnipolar Sensing: Responds to both north and south poles of a magnet for flexible placement.
• Push-Pull Output: Built-in driver circuit eliminates the need for an external pull-up resistor.
• Dual LED Indicators: Includes Power Good LED (D1) and Output Indicator LED (D2) for real-time status feedback.

Model: Honeywell SM351LT
Voltage Supply: 3.3V - 5V
Voltage Input Type: 3-pin 2.50mm header
Current Consumption: 150µA
Sensor Type: Magnetoresistive Sensor
Output Type: Push-Pull (No external pull-up required)
Operate Sensing Range: Typical: 7 Gauss
Operating Temperature: -40°C to +85°C
Board Dimensions: 20mm x 20mm

Useful Documents:

• Datasheet

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