Force Sensing Resistor – Square 44mm (FSR-406 Type)
₹336.30 incl. GST (₹285.00 + GST)
The Square Force Sensing Resistor (44mm × 44mm) is a thin, flexible pressure sensor that changes resistance according to the applied force. With a force detection range of approximately 100g to 10kg, 2.54mm pin spacing, and adhesive backing, it is ideal for touch sensing, pressure detection, robotics, Arduino projects, grip-force detection, and DIY electronics applications.
Square Force Sensing Resistor 44mm × 44mm – 100g to 10kg Pressure Sensor
The Square Force Sensing Resistor (44mm × 44mm) is a thin, flexible, pressure-sensitive sensor designed to detect force and applied pressure. Its electrical resistance changes according to the amount of force applied to the sensing area. As the applied force increases, the resistance decreases, making it suitable for touch detection, pressure sensing, grip detection, and interactive control applications.
With a detectable force range of approximately 100 grams to 10 kilograms, this sensor provides a simple and convenient solution for detecting physical pressure in robotics, automation, DIY electronics, and human-machine interface projects.
The sensor features a 44mm × 44mm square sensing area and a simple 2-wire interface. Its 2.54mm (0.1″) pin spacing makes it convenient to connect to breadboards, PCBs, Arduino boards, and other microcontroller-based systems.
The rear side includes a peel-and-stick adhesive backing, allowing the sensor to be easily mounted onto suitable flat surfaces. Its thin and flexible construction makes it suitable for applications where a compact and unobtrusive pressure sensor is required.
This force sensing resistor is intended primarily for force and pressure detection rather than precision weighing. It can be integrated into custom electronic circuits to monitor changes in applied force and trigger actions based on pressure levels.
Features
- Square force sensing resistor
- Sensing area: 44mm × 44mm
- Detectable force range: approximately 100g to 10kg
- Resistance decreases as applied force increases
- Thin and flexible construction
- Simple 2-wire interface
- 2.54mm (0.1″) pin spacing
- Breadboard and PCB friendly
- Peel-and-stick adhesive backing
- Easy to mount on suitable flat surfaces
- Suitable for touch and pressure detection
- Useful for grip force detection
- Compact design for embedded applications
- Simple interface with Arduino and other microcontrollers
- Suitable for robotics and automation projects
- Ideal for DIY electronics and research projects
- Not intended for high-accuracy weighing applications
Specifications
| Parameter | Specification |
|---|---|
| Product Type | Square Force Sensing Resistor |
| Sensor Type | Force Sensitive Resistor (FSR) |
| Sensing Area | 44mm × 44mm |
| Detectable Force Range | Approximately 100g to 10kg |
| Output Characteristic | Resistance changes with applied force |
| Resistance Response | Resistance decreases as force increases |
| Number of Pins | 2 |
| Pin Spacing | 2.54mm (0.1″) |
| Construction | Thin and Flexible |
| Mounting | Peel-and-Stick Adhesive Backing |
| Connection Type | 2-Wire |
| Application | Force, Pressure and Touch Detection |
Design and Construction
The Square Force Sensing Resistor features a compact 44mm × 44mm square sensing surface designed to detect pressure applied across its active area. Its thin and flexible construction allows it to be integrated into a variety of mechanical and electronic assemblies.
The sensor uses a force-sensitive resistive element whose electrical resistance changes according to the force applied to the sensing surface. This makes it possible to monitor relative changes in pressure using a suitable electronic circuit or microcontroller.
The sensor includes two electrical terminals with 2.54mm (0.1″) spacing, allowing straightforward connection to breadboards, PCBs, jumper wires, and microcontroller-based circuits.
A peel-and-stick adhesive layer is provided on the back of the sensor for convenient installation. This allows the FSR to be attached to suitable flat surfaces in robotics, control panels, interactive devices, and experimental setups.
Its lightweight and flexible construction makes it useful for applications where traditional rigid force sensors may not be suitable.
Working Principle
The Square Force Sensing Resistor operates by changing its electrical resistance when mechanical force is applied to its sensing surface.
When there is little or no pressure on the sensor, its resistance is typically very high, generally greater than 1MΩ. As force is applied to the sensing area, the resistance decreases.
The change in resistance can be measured using an electronic circuit, commonly with a voltage-divider arrangement connected to an analog input of a microcontroller such as an Arduino.
As the applied pressure increases, the measured electrical signal changes accordingly. The microcontroller can then use this signal to detect touch, estimate relative force levels, activate an output, or control another device.
The sensor is therefore a passive sensing component and does not independently generate a digital signal or require complex communication protocols.
Applications
- Robotics and automation
- Pressure-sensitive switches
- Touch detection systems
- Human-machine interfaces
- Grip force detection
- Robotic grippers
- Interactive control systems
- Smart surfaces
- Pressure monitoring
- DIY electronics projects
- Arduino projects
- Microcontroller-based projects
- Embedded sensing systems
- Educational electronics
- Research and prototyping
- Interactive installations
- Custom control interfaces
- Force-responsive mechanisms
- Automation prototypes
- Experimental pressure sensing
Package Includes
- 1 × Square Force Sensing Resistor (44mm × 44mm, 100g–10kg)
Product Disclaimer
Product images are shown for illustrative and representational purposes only. The actual product may vary slightly in appearance, dimensions, markings, or construction depending on the manufacturing batch.
The stated force range is approximate and the sensor is intended primarily for relative force and pressure detection rather than precision measurement or calibrated weighing applications.
Actual resistance characteristics may vary depending on applied force, contact area, sensor placement, environmental conditions, and usage.
Suitable electronic circuitry, wiring, and a microcontroller or measurement device are required to read the sensor output. These components are not included unless specifically mentioned in the package contents.
Recommended Related Products
Explore relevant force-sensing and pressure-sensing products from the Robosap catalogue.
Frequently Asked Questions (FAQs)
1. What is a Square Force Sensing Resistor?
A Square Force Sensing Resistor (FSR) is a pressure-sensitive sensor whose electrical resistance changes when force is applied to its sensing surface. It can be used to detect touch, pressure, and relative force.2. What is the sensing area of this FSR?
The sensor has a 44mm × 44mm square sensing area.3. What force range can this sensor detect?
The sensor can detect an approximate force range of 100 grams to 10 kilograms.4. How does the force sensing resistor work?
When force is applied to the sensing area, the electrical resistance of the sensor decreases. This resistance change can be measured using an electronic circuit or microcontroller.5. What is the resistance with no pressure applied?
With little or no pressure, the sensor resistance is typically greater than 1MΩ.6. How many pins does the sensor have?
The FSR has 2 pins for electrical connection.7. What is the pin spacing?
The pins have a standard 2.54mm (0.1″) spacing, making the sensor convenient for breadboard and PCB connections.8. Can this FSR be used with Arduino?
Yes. The sensor can be connected to an Arduino or other microcontroller using a suitable resistor and voltage-divider circuit to measure changes in resistance.9. Does the sensor require a separate power supply?
No. The FSR is a passive resistive sensor and does not require its own power supply. A suitable external circuit is required to measure its resistance change.10. Does the sensor have adhesive backing?
Yes. The back side features a peel-and-stick adhesive layer for convenient mounting on suitable flat surfaces.11. Can this sensor measure weight accurately?
No. It is primarily designed for force, pressure, and touch detection. It is not recommended for high-accuracy weighing or precision force measurement without proper calibration and application-specific compensation.12. Can the sensor be used in robotics?
Yes. It can be used in robotic grippers, pressure-sensitive controls, touch detection, force feedback experiments, and interactive robotic mechanisms.13. Can this FSR detect different levels of pressure?
Yes. Because its resistance changes with applied force, a microcontroller can monitor the electrical signal to distinguish between different levels of applied pressure.14. Is the sensor flexible?
Yes. The FSR has a thin and flexible construction, allowing it to be integrated into various compact sensing applications.15. What are the common applications of this sensor?
Common applications include robotics, automation, touch sensing, pressure-sensitive switches, grip detection, human-machine interfaces, smart surfaces, Arduino projects, DIY electronics, and research prototypes.16. Is the sensor easy to connect?
Yes. Its simple 2-wire interface and 2.54mm pin spacing make it relatively easy to integrate into electronic circuits and microcontroller projects.17. What components are included with the product?
The package includes 1 × Square Force Sensing Resistor (44mm × 44mm, 100g–10kg). Additional components such as resistors, wires, microcontrollers, or mounting hardware are not included unless specifically stated.18. Can the FSR be used for touch detection?
Yes. Applying even relatively small pressure to the sensing area changes its resistance, making it suitable for touch and pressure detection applications.19. Does the sensor provide a digital output?
No. The FSR provides a variable resistance, which can be converted into a measurable voltage using an appropriate circuit. The resulting analog signal can then be read by a microcontroller.20. What should I check before using the sensor?
Check the sensing area, expected force range, mounting surface, electrical connection, and measurement circuit to ensure the sensor is suitable for your application.Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet