The FSR-406 is a thin, flexible force sensitive resistor with a large 40x40mm square sensing area. Its electrical resistance drops as more force or pressure is applied to the active surface, letting you read pressure, touch or weight as a simple analog signal. It is a popular building block for makers, students and electronics hobbyists working on Arduino, Raspberry Pi and other microcontroller projects.
Key features
- Large 40x40mm square active sensing area for detecting force across a wide surface.
- Thin, flexible film design that fits easily under mats, panels and enclosures.
- Outputs a variable resistance that responds to applied pressure or weight.
- Simple two-terminal connection, easy to wire into breadboards and custom circuits.
Typical uses
- Touch, tap and pressure detection in DIY electronics projects.
- Presence or load sensing on seats, mats and surfaces.
- Robotics, smart-device prototypes and interactive installations.
- Student and educational microcontroller experiments.
How to choose / tips
- Pick the 40x40mm size when you need to sense force over a broad contact area rather than a single point.
- Use a voltage divider resistor to read the sensor cleanly on an analog input.
- Mount it on a flat, firm backing for the most consistent readings.
Why tna W rna
At tna W rna we focus on reliable sourcing and quality components for your electronics and project needs. Enjoy fast delivery across Egypt and the convenience of cash on delivery, so you can build with confidence.
