SKU: SENS-0675
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SOUSHINE FSR406 Force Sensitive Resistor 39.7mm Active Area 20g–10Kg Pressure Sensor

₹379.00 (Inclusive of all taxes)
Out of Stock

The SOUSHINE FSR406 is a thin-film force-sensitive resistor (FSR) with a 39.7mm square active area, designed for precise pressure measurement from 20g to 10kg. It provides a simple two-wire resistive output compatible with microcontroller ADCs for integration into Arduino, Raspberry Pi, and industrial control systems.

Features

  • 39.7 x 39.7 mm active sensing area for broad force distribution.
  • Ultra-thin 0.45mm profile enables integration into compact assemblies.
  • High durability rated for up to 10 million actuation cycles.
  • Low actuation force threshold of 0.1N (approx. 10g) for high sensitivity.
  • Highly repeatable readings with less than 2% variance under consistent actuation.

Out of stock

Description

The FSR406 utilizes a polymer thick-film (PTF) technology where applied force decreases the internal resistance, providing an analog signal proportional to pressure. This single-zone sensor is engineered for human-machine interface (HMI) applications requiring reliable touch detection and force quantification.

Its robust construction ensures stable performance across a wide operating temperature range, making it suitable for integration into automotive electronics, medical devices, and industrial robotics. The simple two-wire interface allows for straightforward connection to voltage divider circuits for analog-to-digital conversion with common 3.3V or 5V logic systems.

Key Features

  • Polymer Thick-Film (PTF) Sensing Element: Provides a smooth, repeatable decrease in resistance with increased applied force.
  • Broad Force Range: Measures forces from as low as 20 grams (0.2N) up to 10 kilograms (98N).
  • Ultra-Thin Form Factor: At only 0.45mm thick, it fits into space-constrained designs like keypads, wearable devices, and thin panels.
  • High Mechanical Endurance: Rated for over 10 million actuations, ensuring long-term reliability in repetitive use cases.
  • Excellent Repeatability: Delivers consistent readings with less than 2% variance when force application is repeatable.
  • Simple Interface: Two-wire resistive output easily interfaces with microcontroller ADC pins via a simple voltage divider circuit.
  • Customizable Sizing: The sensor design can be adapted or trimmed for non-standard sizes and shapes in custom applications.

Applications

  • Human-Machine Interfaces (HMI): Integrating touch-sensitive buttons and sliders in automotive dashboards, medical equipment control panels, and industrial operator consoles.
  • Robotics & Prosthetics: Providing tactile feedback and grip force measurement in robotic grippers, prosthetic hands, and collaborative robot safety skins.
  • Bed & Chair Occupancy Sensing: Detecting patient presence, position shifts, and egress in hospital beds, wheelchairs, and patient monitoring systems.
  • Fluid System Monitoring: Detecting occlusions or blockages in peristaltic pumps, IV lines, and fluidic circuits by measuring back-pressure.
  • Musical Instruments & Gaming Controllers: Enabling velocity-sensitive keys, pads, and expressive control surfaces.

Technical Specifications

Manufacturer Part NumberFSR406
BrandSOUSHINE
Sensor TypeForce Sensitive Resistor (FSR)
Active Area39.7 x 39.7 mm
Force Range20 g to 10 kg (approx. 0.2N to 98N)
Low Actuation Force0.1N (~10g)
Thickness0.45 mm
Repeatability< 2% variance
DurabilityUp to 10 million actuations
Interface2-wire resistive output
Electrical CompatibilityTTL logic compatible (requires external pull-up/pull-down resistor)
Overall Width43 mm

Frequently Asked Questions

How do I interface the FSR406 with an Arduino or Raspberry Pi?

Connect the FSR406 in a simple voltage divider circuit with a fixed resistor (typically 10kΩ) between the sensor output and ground. Connect the junction between the sensor and resistor to an analog input pin on your microcontroller. The ADC will read a voltage that varies inversely with the applied force. Calibration is required to map the ADC reading to a specific force value.

What is the electrical output of the FSR406 sensor?

The FSR406 provides a variable resistive output. Its resistance decreases non-linearly as applied force increases. It is a passive two-wire device with no polarity. You must provide an external voltage source and use a pull-down or pull-up resistor to create a measurable voltage signal compatible with TTL-level analog inputs.

Can the FSR406 be used for measuring precise weight or force in grams?

While it can detect forces as low as 20g, the FSR406's response is non-linear, especially at the extremes of its range. It is excellent for threshold detection, touch sensing, and relative force measurement. For precise, linear weight measurement in grams, a calibrated load cell or strain gauge is typically a more suitable choice.

What is the lifespan and durability of this force sensor?

The FSR406 is rated for up to 10 million actuation cycles, making it highly durable for repetitive use in applications like button presses or grip sensing. Its polymer thick-film construction is robust against mechanical stress, but the flexible leads should be handled carefully during installation to avoid breakage.

Package Includes

  • 1 x SOUSHINE FSR406 Force Sensitive Resistor

Additional Information

Dimensions 4.3 × 0.045 cm