SKU: SENS-0676
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SOUSHINE FSR406 Long Tail Force Sensing Resistor 39.7x39.7mm (50g-10kg) - TTL Compatible

₹379.00 (Inclusive of all taxes)
Out of Stock

The SOUSHINE FSR406 is a single-zone, thin-film force sensing resistor (FSR) designed for precise force detection from 50g to 10kg. Its TTL-compatible output and ultra-thin 0.45mm profile make it ideal for integration into touch-sensitive interfaces, robotics, and medical devices requiring compact, durable sensing solutions.

Features

  • Polymer thick-film (PTF) sensor with a 39.7 x 39.7 mm active sensing area.
  • Wide force detection range from 0.1N (approx. 10g) up to 10N (approx. 1kg), suitable for 50g to 10kg applications.
  • Ultra-thin form factor of 0.45mm for minimal space intrusion.
  • High durability with a lifespan of up to 10 million actuations.
  • TTL-compatible two-wire interface for simple integration with microcontrollers and digital logic circuits.

Out of stock

Description

The SOUSHINE FSR406 operates on the principle of a polymer thick-film (PTF) sensor, where applied force causes a decrease in electrical resistance between its two terminals. This inverse relationship provides a simple, analog-like signal proportional to force, which can be conditioned for digital TTL compatibility. The sensor’s robust construction ensures reliable performance across millions of cycles.

Designed for environmental resilience, the FSR406’s thin yet durable build is suited for applications requiring precise force quantification without mechanical bulk. Its long-tail cable termination facilitates easy wiring into control systems, automotive electronics, medical instrumentation, and robotic grippers, providing a direct method for converting physical pressure into a usable electrical signal.

Key Features

  • Force Sensing Resistor (FSR) with a square 39.7mm active area for distributed pressure measurement.
  • Wide dynamic range capable of detecting subtle touches (0.1N) up to significant presses (10N).
  • High repeatability with force reading variation as low as 2% under consistent actuation.
  • Ultra-thin 0.45mm profile enables integration into space-constrained designs.
  • Exceptional mechanical durability rated for over 10 million actuation cycles.
  • Simple two-wire interface with TTL-compatible output for direct microcontroller connection.
  • Constructed with robust polymer thick-film technology for long-term stability.
  • High-value build optimized for cost-sensitive yet performance-critical applications.

Applications

  • Robotic gripper force feedback and object slip detection systems.
  • Medical bed occupancy and patient movement monitoring in healthcare devices.
  • Automotive touch-sensitive control panels and intuitive human-machine interfaces (HMI).
  • Industrial safety interlocks requiring differentiation between a grip and a casual touch.
  • Pump occlusion detection in fluid handling systems by measuring back-pressure.

Technical Specifications

Manufacturer Part NumberFSR406
BrandSOUSHINE
Sensor TypeForce Sensing Resistor (FSR)
Active Area39.7 x 39.7 mm
Force Range0.1N to 10N (approx. 50g to 10kg)
Thickness0.45 mm
DurabilityUp to 10 million actuations
Repeatability~2% variation
Electrical Interface2-wire, TTL Compatible
ConnectionLong Tail Cable

Frequently Asked Questions

What is the electrical interface and how do I connect the FSR406?

The FSR406 is a simple two-wire device. Its resistance decreases with applied force. For TTL compatibility, you typically connect it in series with a pull-up resistor to a logic voltage (e.g., 5V), creating a voltage divider. The output node can be read by a microcontroller's digital or analog input pin to detect force thresholds.

What is the actual force range and sensitivity of this sensor?

The sensor is specified for an actuation force range from 0.1 Newtons (approximately 10 grams) up to 10 Newtons (approximately 1 kilogram). The product title references 50g to 10kg, indicating its effective operational span for light touch to heavier press applications, with high sensitivity at the lower end.

How durable is the FSR406 and what does '10 million actuations' mean?

The sensor is rated for up to 10 million full actuation cycles, meaning it can be pressed and released 10 million times while maintaining its specified performance characteristics, such as repeatability within ~2%. This makes it suitable for high-cycle applications like control buttons or robotic tactile sensing.

Can this sensor be used for precise weight measurement?

While the FSR406 provides a force-proportional signal, it is best suited for threshold detection, touch sensing, and relative force measurement rather than precision weighing. Its response is non-linear and can be affected by factors like contact area and temperature. For accurate weight measurement, a calibrated load cell is recommended.

Package Includes

  • 1 x SOUSHINE FSR406 Force Sensing Resistor with Long Tail Cable