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The FSR402 14.7mm (0.5 Inch) Round Force Sensing Resistor is an ultra-thin, flexible piezoresistive polymer sensor designed to detect physical pressure, touch, and force. As mechanical force is applied to the active 14.7mm circular sensing area, the internal electrical resistance of the sensor drops dramatically—moving from greater than 1MΩ at rest (unpressed) down to roughly 1kΩ or lower under heavy force.

With a wide force detection sensitivity range spanning from 10g to 10kg (0.1N to 100N), the FSR402 acts as a force-sensitive variable resistor. Its non-obtrusive, paper-thin footprint makes it easy to integrate behind soft pads, robot grippers, musical instruments, and human-machine interfaces. Electroboat Technologies provides authentic, highly durable force sensors ready for your embedded and prototyping projects.

Key Features and Benefits

• Wide Force Range: Detects applied force from light touch (~10g) up to heavy pressure (~10kg).

• Paper-Thin & Flexible: Thickness under 0.5mm allows seamless installation under surfaces and inside tight enclosures.

• Simple Interface: Functions as a simple 2-terminal variable resistor—easily converted to an analog voltage using a standard voltage divider circuit.

• High Durability: Rated for over 10 million actuator presses for long-term reliability.

• Versatile Tactile Sensing: Excellent for touch buttons, grip force detection, weight distribution mats, and impact sensing.

Technical Specifications

How to Use

1. Circuit Wiring: Connect one terminal of the FSR402 to your supply voltage (5V or 3.3V).

2. Voltage Divider: Connect the second terminal to an analog input pin on your microcontroller (e.g., A0 on Arduino). Place a 10kΩ pull-down resistor between this analog pin and Ground (GND).

3. Reading Data: In your code, read the analog voltage using analogRead(). As pressure increases, the voltage across the 10kΩ resistor rises proportionally.

4. Mounting Precaution: Apply pressure directly to the center of the circular active area. Avoid soldering heat directly to the flex tail pins—use breadboard wires or crimp connectors.

Applications

• Robotic Gripper Feedback & Object Handling Detection

• Electronic Musical Instruments (Velocity-Sensitive Pads & Keys)

• Medical Devices & Patient Bed Occupancy Sensors

• Interactive Touch Interfaces, Game Controllers, & Smart Wearables

• Automotive Seat Occupation & Safety Sensing

Package Includes

• 1 x FSR402 14.7mm (0.5 Inch) Round Force Sensing Resistor Sensor

Shipping & Delivery

• Free shipping on orders above ₹999 across India

• Dispatched within 1-3 business days

• Expected delivery: 3-7 business days depending on location

• Secure packaging to ensure safe transit of electronic components