Square Force Sensitive Resistor (FSR) | LP3981 - Linepro Global

Square Force Sensitive Resistor (FSR) | LP3981

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Product Description:

The LP3981 Square Force Sensitive Resistor is a thin, flexible, and highly responsive pressure sensor designed to accurately detect force, pressure, and touch. Built using advanced FSR shunt-mode technology, it delivers fast response times and consistent performance across a wide force range. Its compact square sensing area and durable PET construction make it ideal for space-constrained applications in medical devices, sports analytics, robotics, and consumer electronics. The sensor is engineered for long operational life, high accuracy, and reliable performance even in demanding environments.

Key Features

  • Wide force sensing range from 5 N to 450 N

  • Accurately detects force, pressure, and touch

  • Ultra-thin, lightweight, and flexible design

  • Fast response time (< 1 ms) for real-time measurements

  • High durability with over 1 million actuation cycles

  • Operates reliably under extreme environmental conditions

  • Customizable for diverse application requirements

  • Cost-effective sensing solution for OEM and industrial use

Download Datasheet

Product Details:

  • Sensor Technology: Force Sensitive Resistor (FSR – Shunt Mode)

  • Sensing Area: 40 × 40 mm

  • Force Range: 5 N to 450 N

  • Pressure Range: 0 to 50 kg

  • Response Time: < 1 ms

  • Unload Resistance: 0.981 to 1.2 MΩ

  • Accuracy: ±5%

  • Material: PET (Polyester)

  • Conductive Paste: Silver and Carbon

  • Overall Dimensions: 90 × 40 mm

  • Thickness: 0.3 mm

  • Connector Type: 2-pin Male Pin

  • Pin Spacing: 2.5 mm

  • Durability: > 1 million cycles

  • Ingress Protection: IP67

  • Country of Origin: India

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