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Square Force-Sensitive Resistor (FSR) [Interlink 406]

Square Force-Sensitive Resistor (FSR) [Interlink 406]

We have ✅ 6 available of the AF-1075 in our Sydney warehouse. An extra 100 units available with a short lead time.

Express post delivery (2-5 business days)

A force-sensitive resistor (FSR) that changes its resistance based on how much pressure is applied. This Interlink 406 model features a 38 mm square sensing region, making it useful for detecting physical pressure, squeezing, and weight in your projects.

FSRs are simple and low cost, but not precision instruments — expect approximate ranges of response rather than exact measurements. Resistance varies from sensor to sensor by roughly 10%, so they're best for detecting relative force rather than precise weight.

Key Features

  • 38 mm Square Sensing Area – Larger active region than round FSRs
  • Variable Resistance – Changes in ohms (Ω) proportional to applied force
  • Breadboard Compatible – Plug directly into a breadboard
  • Low Cost & Simple – Easy analogue input for microcontrollers
Tip: The connection tab is crimped onto delicate plastic. Use a breadboard, alligator clips, female header, or terminal block to connect. Soldering is possible but requires a quality iron and quick technique — prolonged heat will melt the plastic and ruin the sensor.

Specifications

  • Model – Interlink 406
  • Sensing Area – 38 × 38 mm (square)
  • Output – Variable resistance (analogue)
  • Tolerance – ~±10% sensor-to-sensor

Ideal For

  • Pressure and touch detection
  • Weight-sensing projects (approximate)
  • Interactive art and musical instruments
  • Robotics grip sensing

Package Contents

  • 1× Square Force-Sensitive Resistor (Interlink 406)

Resources

The Square Force-Sensitive Resistor (FSR) [Interlink 406] appears in the following collections:

SKU AF-1075
by Adafruit