Square Force-Sensitive Resistor Description
This square force-sensitive resistor is a single-zone pressure sensor designed for detecting human touch and applied force in electronic systems. It operates as a two-wire device using a durable polymer thick-film sensing layer that changes resistance when pressure is applied. As the applied force increases, the sensor’s resistance decreases proportionally.
The sensor features a square active sensing area that provides reliable and consistent force detection across its surface. When no pressure is applied, the resistance remains very high (greater than 1 MΩ), ensuring minimal signal interference. The sensor is suitable for applications such as touch-based controls, medical devices, industrial systems, and robotic interfaces.
The force-sensitive resistor can detect forces ranging from light touch to heavy pressure. It is designed for easy integration into electronic circuits, with closely spaced connection terminals that make it compatible with standard prototyping and testing setups. A self-adhesive backing on the sensing side allows convenient mounting on flat surfaces.
In addition to the square variant, a circular force-sensitive resistor is also available. This version features a round sensing area and operates on the same resistance-based pressure detection principle. It offers similar performance characteristics and force detection range, making it suitable for compact or space-constrained designs.
Specifications
Sensor Type: Force-Sensitive Resistor (Single-Zone)
Sensing Area (Square): 39.6 mm × 39.6 mm
Sensing Area (Circular): 12.7 mm diameter
Force Detection Range: 100 g – 10 kg
Resistance (No Load): > 1 MΩ
Resistance Behavior: Decreases with increasing force
Electrical Interface: Two-wire analog output
Mounting: Peel-and-stick adhesive backing
Connection Pitch: 0.1 inch (prototype-friendly)
