SKU: SENS-0694
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Generic Force Sensitive Resistor RP-S5-ST (10g-1kg) - Thin Film Sensor

₹144.00 (Inclusive of all taxes)
Out of Stock

The RP-S5-ST is a thin-film force-sensitive resistor (FSR) providing variable resistance from 500 kΩ to 500 Ω in response to applied force within a 10g to 1kg range. Its ultra-thin 0.25mm profile with rear adhesive makes it ideal for integration into compact electronics, robotics, and interactive prototypes requiring pressure or touch input.

Features

  • Ultra-thin 0.25mm profile with integrated adhesive backing for easy mounting.
  • Wide dynamic resistance range from ~500 kΩ (no load) down to ~500 Ω (1kg load).
  • Precise low-force detection with an actuation threshold as low as 10 grams.
  • Robust operating temperature range from -40°C to +85°C for diverse environments.
  • Simple two-terminal resistive interface compatible with voltage divider circuits for Arduino, Raspberry Pi, and other microcontrollers.

Out of stock

Description

The RP-S5-ST Force Sensitive Resistor operates on the principle of piezoresistivity, where the electrical resistance through a specialized polymer Matrix decreases predictably with increasing applied force. This analog output provides a continuous measurement of pressure, making it suitable for dynamic force profiling rather than simple on/off detection.

Constructed with a durable, flexible substrate, the sensor maintains its sensing characteristics across a wide industrial temperature range. The integrated adhesive layer simplifies installation into end-use applications without the need for additional mechanical fasteners, preserving its minimal form factor for space-constrained designs.

Key Features

  • High-Resolution Force Sensing: Delivers analog resistance output proportional to applied force across the full 10g to 1kg measurement span.
  • Optimized Form Factor: Features an exceptionally thin 0.25mm construction with a pressure-sensitive adhesive backing for seamless integration.
  • Broad Environmental Tolerance: Rated for reliable operation across an extended temperature range from -40°C to +85°C.
  • Durable Polymer Construction: Engineered for consistent performance and longevity in repeated force-application cycles.
  • Simple Interface: Two-pin resistive output easily interfaces with microcontroller ADCs via a basic voltage divider circuit.
  • High-Value Build: Provides precise, analog force sensing in a cost-effective, ready-to-integrate package.

Applications

  • Robotic gripper and end-effector tactile feedback systems for force-controlled manipulation.
  • Interactive human-machine interfaces (HMIs) and touch-sensitive control panels.
  • Wearable biomechanics and gait analysis systems for measuring foot pressure distribution.
  • Proportional control input devices for gaming peripherals, musical instruments, or VR controllers.
  • Industrial process monitoring for lightweight assembly verification and presence detection.

Technical Specifications

ModelRP-S5-ST
Sensing PrinciplePiezoresistive (Force-Sensitive Resistor)
Force Sensitivity Range10 g to 1 kg
Actuation Force10 g (Resistance ≤ 200 kΩ)
Resistance Range~500 kΩ (no load) to ~500 Ω (1 kg load)
Thickness0.25 mm (with adhesive backing)
Operating Temperature-40°C to +85°C
Output TypeVariable Resistance (Analog)
Interface2-pin (Resistive)

Frequently Asked Questions

How do I interface the RP-S5-ST FSR with an Arduino or Raspberry Pi?

Connect the FSR in a voltage divider circuit with a fixed resistor (e.g., 10 kΩ) between its signal pin and ground. Connect the junction between the FSR and the fixed resistor to an analog input pin on your microcontroller. The voltage read will vary inversely with the applied force, which your code can then map to a force value.

What is the actuation force, and how is it defined?

The actuation force of 10g is the minimum force required to cause a measurable decrease in resistance from its resting state. At this threshold, the sensor's resistance typically drops to 200 kΩ or lower, marking the start of its usable sensing range, which extends up to 1 kg.

Can this sensor be used for precise weight measurement?

While it provides analog output proportional to force, it is best suited for relative force measurement, touch detection, or pressure mapping rather than high-precision weighing. For accurate weight measurement, a dedicated load cell with a strain gauge and instrumentation amplifier is recommended.

How do I mount the sensor, and is it reusable?

The sensor includes a pressure-sensitive adhesive backing for permanent mounting. Carefully peel the liner and apply to a clean, flat surface. While the adhesive is designed for permanent installation, it may be possible to remove and reposition it gently, though this can affect adhesion and potentially damage the thin film.

Package Includes

  • 1 x Force Sensitive Resistor RP-S5-ST (10g-1kg)