Force Sensing Resistor (FSR) 5.08mm Circular – Pressure & Touch Sensor for Arduino, Robotics & DIY Electronics

Technical Specifications

• Type: Force Sensing Resistor (FSR)
• Sensing Area: 5.08mm (0.2 inch) circular active region
• Thickness: Approx. 0.5 mm
• Operating Voltage: 3.3V – 5V
• Force Sensitivity Range: 0.2N to 20N (varies by model)
• Response Time: < 10 ms
• Output Type: Variable resistance (decreases as force increases)
• Durability: > 10 million actuations
• Connector Type: Two-pin flexible leads
• Operating Temperature: -20°C to +60°C
• Applications: Robotics, pressure measurement, human touch detection, gaming controllers, smart textile projects, Arduino & sensor-based systems

Technical Descriptions

The FSR 5.08mm Circular Force Sensing Resistor is an ultra-thin, lightweight pressure sensor designed to measure varying force levels through resistance change. With a 5.08mm active sensing area, this compact FSR is ideal for space-constrained applications such as compact robotics, pressure pads, wearable tech, touch interfaces, and human-interaction devices.

This sensor outputs a variable resistance, which drops as force or pressure increases, making it easy to interface with microcontrollers like Arduino, ESP32, Raspberry Pi, and STM32 using a simple voltage divider circuit. It responds rapidly (<10 ms), handles over 10 million actuations, and provides reliable performance for both hobby and professional applications.

Perfect for robotic grippers, pressure-based controls, musical instruments, biomechanics projects, smart gloves, and interactive electronics.