SKU: SENS-0698
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Generic RP-L-130 Force Sensitive Resistor (20g-10kg)

₹669.00 (Inclusive of all taxes)
Out of Stock

The RP-L-130 is a thin-film force-sensitive resistor (FSR) providing variable resistance proportional to applied force from 20g to 10kg, ideal for integration into Arduino, Raspberry Pi, and other microcontroller-based projects requiring tactile or pressure sensing.

Features

  • Ultra-thin 0.4mm polymer thick film (PTF) construction for flexible integration.
  • Wide force sensing range from a light 20g actuation up to 10kg maximum load.
  • Variable resistance output, decreasing from >10MΩ (no load) as force is applied.
  • Robust operating temperature range from -40°C to +85°C for diverse environments.
  • Simple two-terminal interface for easy connection to voltage divider circuits.

Out of stock

Description

The RP-L-130 Force Sensitive Resistor operates on the principle of piezoresistivity, where the electrical resistance of its conductive polymer film decreases predictably with an increase in applied mechanical force. This analog output characteristic makes it suitable for creating simple, cost-effective force-sensing interfaces.

Designed with a minimal 0.4mm profile, this sensor can be embedded into tight spaces, wearable devices, or under surfaces without adding bulk. Its wide operating temperature ensures reliable performance in both industrial and consumer electronics applications, from control panels to robotic grippers.

Key Features

  • Precision Force-to-Resistance Mapping: Delivers a consistent, repeatable change in resistance corresponding to applied force across its full 20g to 10kg range.
  • Durable Thin-Film Design: The flexible, sub-millimeter construction resists fatigue and is suitable for dynamic or repeated loading applications.
  • Broad Environmental Compatibility: Stable operation across an extended -40°C to +85°C temperature range for use in challenging conditions.
  • Simple Signal Conditioning: Requires only a basic voltage divider circuit and an ADC input on a microcontroller for digital force measurement.
  • High-Value Sensing Solution: Provides a reliable, analog force measurement interface at an optimized performance-to-cost ratio for prototyping and production.

Applications

  • Robotic end-effector grip force feedback and object presence detection.
  • Interactive control panels and musical instrument touch interfaces requiring pressure sensitivity.
  • Wearable biomechanics and sports equipment for measuring impact or applied force.
  • Industrial machinery and process control for basic pressure or weight limit monitoring.
  • Prosthetic and assistive device development for tactile feedback systems.

Technical Specifications

Model NumberRP-L-130
Sensing PrinciplePiezoresistive (Force-Sensitive Resistor)
Force Sensing Range20g to 10kg
Actuation Force (Threshold)20g
Resistance Range (Typical)>10MΩ (No Load) to lower values under force
Thickness0.4 mm
Operating Temperature-40°C to +85°C
Interface2-Terminal Analog Resistance

Frequently Asked Questions

How do I interface the RP-L-130 FSR with an Arduino or Raspberry Pi?

Connect the FSR in a voltage divider circuit with a fixed resistor (e.g., 10kΩ) between one FSR terminal and ground. Connect the junction between the resistor and FSR to an analog input pin (ADC) on your microcontroller. The other FSR terminal connects to the logic voltage (e.g., 3.3V or 5V). The ADC will read a voltage that varies with the applied force.

What is the relationship between force and resistance for this sensor?

The RP-L-130 exhibits a non-linear, inverse relationship: resistance decreases as applied force increases. At no load, resistance is very high (>10MΩ). As force is applied from the 20g threshold up to 10kg, the resistance drops significantly, providing a usable analog signal for measurement after calibration.

Can this sensor be used for precise weight measurement?

While it can detect force changes, the RP-L-130 is best suited for relative force sensing, touch detection, or threshold applications rather than high-precision weighing. Its response is non-linear and can vary with temperature and point of load application. For accurate weight measurement, a dedicated load cell with a strain gauge is recommended.

What is the operating voltage for this force sensor?

The FSR itself does not have a specific operating voltage; it is a passive resistive element. The voltage applied across it in your circuit (typically 3.3V or 5V logic level) should be chosen to match your microcontroller's ADC reference voltage to ensure accurate readings and avoid exceeding the sensor's power dissipation limits.

Package Includes

  • 1 x Force Sensitive Resistor RP-L-130